Cosmic signal from the very early universe will help astronomers detect the first stars
Now, an international group of astronomers led by the University of Cambridge have shown that we will be able to learn about the masses of the earliest stars by studying a specific radio signal – created by hydrogen atoms filling the gaps between star-forming regions – originating just a hundred million years after the Big Bang.
By studying how the first stars and their remnants affected this signal, called the 21-centimetre signal, the researchers have shown that future radio telescopes will help us understand the very early universe, and how it transformed from a nearly homogeneous mass of mostly hydrogen to the incredible complexity we see today. Their results are reported in the journal Nature Astronomy.
“This is a unique opportunity to learn how the universe’s first light emerged from the darkness,” said co-author Professor Anastasia Fialkov from Cambridge’s Institute of Astronomy. “The transition from a cold, dark universe to one filled with stars is a story we’re only beginning to understand.”
The study of the universe’s most ancient stars hinges on the faint glow of the 21-centimetre signal, a subtle energy signal from over 13 billion years ago. This signal, influenced by the radiation from early stars and black holes, provides a rare window into the universe’s infancy.
Fialkov leads the theory group of REACH (the Radio Experiment for the Analysis of Cosmic Hydrogen). REACH is a radio antenna and is one of two major projects that could help us learn about the Cosmic Dawn and the Epoch of Reionisation, when the first stars reionised neutral hydrogen atoms in the universe.
Although REACH, which captures radio signals, is still in its calibration stage, it promises to reveal data about the early universe. Meanwhile, the Square Kilometre Array (SKA)—a massive array of antennas under construction—will map fluctuations in cosmic signals across vast regions of the sky.
Both projects are vital in probing the masses, luminosities, and distribution of the universe's earliest stars. In the current study, Fialkov – who is also a member of the SKA – and her collaborators developed a model that makes predictions for the 21-centimetre signal for both REACH and SKA, and found that the signal is sensitive to the masses of first stars.
“We are the first group to consistently model the dependence of the 21-centimetre signal of the masses of the first stars, including the impact of ultraviolet starlight and X-ray emissions from X-ray binaries produced when the first stars die,” said Fialkov, who is also a member of Cambridge’s Kavli Institute for Cosmology. “These insights are derived from simulations that integrate the primordial conditions of the universe, such as the hydrogen-helium composition produced by the Big Bang.”
In developing their theoretical model, the researchers studied how the 21-centimetre signal reacts to the mass distribution of the first stars, known as Population III stars. They found that previous studies have underestimated this connection as they did not account for the number and brightness of X-ray binaries – binary systems made of a normal star and a collapsed star – among Population III stars, and how they affect the 21-centimetre signal.
Unlike optical telescopes like the James Webb Space Telescope, which capture vivid images, radio astronomy relies on statistical analysis of faint signals. REACH and SKA will not be able to image individual stars, but will instead provide information about entire populations of stars, X-ray binary systems and galaxies.
“It takes a bit of imagination to connect radio data to the story of the first stars, but the implications are profound,” said Fialkov.
“The predictions we are reporting have huge implications for our understanding of the nature of the very first stars in the Universe,” said co-author Dr Eloy de Lera Acedo, Principal Investigator of the REACH telescope and PI at Cambridge of the SKA development activities. “We show evidence that our radio telescopes can tell us details about the mass of those first stars and how these early lights may have been very different from today’s stars.
“Radio telescopes like REACH are promising to unlock the mysteries of the infant Universe, and these predictions are essential to guide the radio observations we are doing from the Karoo, in South Africa.”
The research was supported in part by the Science and Technology Facilities Council (STFC), part of UK Research and Innovation (UKRI). Anastasia Fialkov is a Fellow of Magdalene College, Cambridge. Eloy de Lera Acedo is an STFC Ernest Rutherford Fellow and a Fellow of Selwyn College, Cambridge.
Reference:
T. Gessey-Jones et al. ‘Determination of the mass distribution of the first stars from the 21-cm signal.’ Nature Astronomy (2024). DOI: 10.1038/s41550-025-02575-x
Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn. However, even with the most powerful telescopes, we can’t directly observe these earliest stars, so determining their properties is one of the biggest challenges in astronomy.
This is a unique opportunity to learn how the universe’s first light emerged from the darknessAnastasia FialkovESA/Webb, NASA, ESA, CSAThe image shows a deep galaxy field, featuring thousands of galaxies of various shapes and sizes
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cosmic signal from the very early universe will help astronomers detect the first stars
Now, an international group of astronomers led by the University of Cambridge have shown that we will be able to learn about the masses of the earliest stars by studying a specific radio signal – created by hydrogen atoms filling the gaps between star-forming regions – originating just a hundred million years after the Big Bang.
By studying how the first stars and their remnants affected this signal, called the 21-centimetre signal, the researchers have shown that future radio telescopes will help us understand the very early universe, and how it transformed from a nearly homogeneous mass of mostly hydrogen to the incredible complexity we see today. Their results are reported in the journal Nature Astronomy.
“This is a unique opportunity to learn how the universe’s first light emerged from the darkness,” said co-author Professor Anastasia Fialkov from Cambridge’s Institute of Astronomy. “The transition from a cold, dark universe to one filled with stars is a story we’re only beginning to understand.”
The study of the universe’s most ancient stars hinges on the faint glow of the 21-centimetre signal, a subtle energy signal from over 13 billion years ago. This signal, influenced by the radiation from early stars and black holes, provides a rare window into the universe’s infancy.
Fialkov leads the theory group of REACH (the Radio Experiment for the Analysis of Cosmic Hydrogen). REACH is a radio antenna and is one of two major projects that could help us learn about the Cosmic Dawn and the Epoch of Reionisation, when the first stars reionised neutral hydrogen atoms in the universe.
Although REACH, which captures radio signals, is still in its calibration stage, it promises to reveal data about the early universe. Meanwhile, the Square Kilometre Array (SKA)—a massive array of antennas under construction—will map fluctuations in cosmic signals across vast regions of the sky.
Both projects are vital in probing the masses, luminosities, and distribution of the universe's earliest stars. In the current study, Fialkov – who is also a member of the SKA – and her collaborators developed a model that makes predictions for the 21-centimetre signal for both REACH and SKA, and found that the signal is sensitive to the masses of first stars.
“We are the first group to consistently model the dependence of the 21-centimetre signal of the masses of the first stars, including the impact of ultraviolet starlight and X-ray emissions from X-ray binaries produced when the first stars die,” said Fialkov, who is also a member of Cambridge’s Kavli Institute for Cosmology. “These insights are derived from simulations that integrate the primordial conditions of the universe, such as the hydrogen-helium composition produced by the Big Bang.”
In developing their theoretical model, the researchers studied how the 21-centimetre signal reacts to the mass distribution of the first stars, known as Population III stars. They found that previous studies have underestimated this connection as they did not account for the number and brightness of X-ray binaries – binary systems made of a normal star and a collapsed star – among Population III stars, and how they affect the 21-centimetre signal.
Unlike optical telescopes like the James Webb Space Telescope, which capture vivid images, radio astronomy relies on statistical analysis of faint signals. REACH and SKA will not be able to image individual stars, but will instead provide information about entire populations of stars, X-ray binary systems and galaxies.
“It takes a bit of imagination to connect radio data to the story of the first stars, but the implications are profound,” said Fialkov.
“The predictions we are reporting have huge implications for our understanding of the nature of the very first stars in the Universe,” said co-author Dr Eloy de Lera Acedo, Principal Investigator of the REACH telescope and PI at Cambridge of the SKA development activities. “We show evidence that our radio telescopes can tell us details about the mass of those first stars and how these early lights may have been very different from today’s stars.
“Radio telescopes like REACH are promising to unlock the mysteries of the infant Universe, and these predictions are essential to guide the radio observations we are doing from the Karoo, in South Africa.”
The research was supported in part by the Science and Technology Facilities Council (STFC), part of UK Research and Innovation (UKRI). Anastasia Fialkov is a Fellow of Magdalene College, Cambridge. Eloy de Lera Acedo is an STFC Ernest Rutherford Fellow and a Fellow of Selwyn College, Cambridge.
Reference:
T. Gessey-Jones et al. ‘Determination of the mass distribution of the first stars from the 21-cm signal.’ Nature Astronomy (2024). DOI: 10.1038/s41550-025-02575-x
Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn. However, even with the most powerful telescopes, we can’t directly observe these earliest stars, so determining their properties is one of the biggest challenges in astronomy.
This is a unique opportunity to learn how the universe’s first light emerged from the darknessAnastasia FialkovESA/Webb, NASA, ESA, CSAThe image shows a deep galaxy field, featuring thousands of galaxies of various shapes and sizes
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Placenta and hormone levels in the womb may have been key driver in human evolution
Dr Alex Tsompanidis, senior researcher at the Autism Research Centre in the University of Cambridge, and the lead author of this new study, said: “Small variations in the prenatal levels of steroid hormones, like testosterone and oestrogen, can predict the rate of social and cognitive learning in infants and even the likelihood of conditions such as autism. This prompted us to consider their relevance for human evolution.”
One explanation for the evolution of the human brain may be in the way humans adapted to be social. Professor Robin Dunbar, an Evolutionary Biologist at the University of Oxford and joint senior author of this new study said: “We’ve known for a long time that living in larger, more complex social groups is associated with increases in the size of the brain. But we still don’t know what mechanisms may link these behavioural and physical adaptations in humans.”
In this new paper, published today in Evolutionary Anthropology, the researchers now propose that the mechanism may be found in prenatal sex steroid hormones, such as testosterone or oestrogens, and the way these affect the developing brain and behaviour in humans.
Using ‘mini-brains’ – clusters of human neuronal cells that are grown in a petri dish from donors’ stem cells – other scientists have been able to study, for the first time, the effects of these hormones on the human brain. Recent discoveries have shown that testosterone can increase the size of the brain, while oestrogens can improve the connectivity between neurons.
In both humans and other primates such as chimpanzees and gorillas, the placenta can link the mother’s and baby’s endocrine systems to produce these hormones in varying amounts.
Professor Graham Burton, Founding Director of the Loke Centre of Trophoblast Research at the University of Cambridge and coauthor of the new paper, said: “The placenta regulates the duration of the pregnancy and the supply of nutrients to the fetus, both of which are crucial for the development of our species’ characteristically large brains. But the advantage of human placentas over those of other primates has been less clear.”
Two previous studies show that levels of oestrogen during pregnancy are higher in human pregnancies than in other primate species.
Another characteristic of humans as a species is our ability to form and maintain large social groups, larger than other primates and other extinct species, such as Neanderthals. But to be able to do this, humans must have adapted in ways that maintain high levels of fertility, while also reducing competition in large groups for mates and resources.
Prenatal sex steroid hormones, such as testosterone and oestrogen, are also important for regulating the way males and females interact and develop, a process known as sex differentiation. For example, having higher testosterone relative to oestrogen leads to more male-like features in anatomy (e.g., in physical size and strength) and in behaviour (e.g., in competition).
But in humans, while these on-average sex differences exist, they are reduced, compared to our closest primate relatives and relative to other extinct human species (such as the Neanderthals). Instead, anatomical features that are specific to humans appear to be related more to aspects of female rather than male biology, and to the effects of oestrogens (e.g., reduced body hair, and a large ratio between the second and fourth digit).
The researchers propose that the key to explain this may lie again with the placenta, which rapidly turns testosterone to oestrogens, using an enzyme called aromatase. Recent discoveries show that humans have higher levels of aromatase compared to macaques, and that males may have slightly higher levels compared to females.
Bringing all these lines of evidence together, the authors propose that high levels of prenatal sex steroid hormones in the womb, combined with increased placental function, may have made human brains larger and more interconnected. At the same time, a lower ratio of androgens (like testosterone) to oestrogens may have led to reductions in competition between males, while also improving fertility in females, allowing humans to form larger, more cohesive social groups.
Professor Simon Baron-Cohen, Director of the Autism Research Centre at the University of Cambridge and joint senior author on the paper, said: “We have been studying the effects of prenatal sex steroids on neurodevelopment for the past 20 years. This has led to the discovery that prenatal sex steroids are important for neurodiversity in human populations. This new hypothesis takes this further in arguing that these hormones may have also shaped the evolution of the human brain.”
Dr Tsompanidis added: “Our hypothesis puts pregnancy at the heart of our story as a species. The human brain is remarkable and unique, but it does not develop in a vacuum. Adaptations in the placenta and the way it produces sex steroid hormones may have been crucial for our brain’s evolution, and for the emergence of the cognitive and social traits that make us human.”
ReferenceTsompanidis, A et al. The placental steroid hypothesis of human brain evolution. Evolutionary Anthropology; 20 June 2025; DOI: 10.1002/evan.70003
The placenta and the hormones it produces may have played a crucial role in the evolution of the human brain, while also leading to the behavioural traits that have made human societies able to thrive and expand, according to a new hypothesis proposed by researchers from the Universities of Cambridge and Oxford.
Our hypothesis puts pregnancy at the heart of our story as a speciesAlex TsompanidisNadzeya Haroshka (Getty Images)Models of a fetus in the womb and of the brain
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Placenta and hormone levels in the womb may have been key driver in human evolution
Dr Alex Tsompanidis, senior researcher at the Autism Research Centre in the University of Cambridge, and the lead author of this new study, said: “Small variations in the prenatal levels of steroid hormones, like testosterone and oestrogen, can predict the rate of social and cognitive learning in infants and even the likelihood of conditions such as autism. This prompted us to consider their relevance for human evolution.”
One explanation for the evolution of the human brain may be in the way humans adapted to be social. Professor Robin Dunbar, an Evolutionary Biologist at the University of Oxford and joint senior author of this new study said: “We’ve known for a long time that living in larger, more complex social groups is associated with increases in the size of the brain. But we still don’t know what mechanisms may link these behavioural and physical adaptations in humans.”
In this new paper, published today in Evolutionary Anthropology, the researchers now propose that the mechanism may be found in prenatal sex steroid hormones, such as testosterone or oestrogens, and the way these affect the developing brain and behaviour in humans.
Using ‘mini-brains’ – clusters of human neuronal cells that are grown in a petri dish from donors’ stem cells – other scientists have been able to study, for the first time, the effects of these hormones on the human brain. Recent discoveries have shown that testosterone can increase the size of the brain, while oestrogens can improve the connectivity between neurons.
In both humans and other primates such as chimpanzees and gorillas, the placenta can link the mother’s and baby’s endocrine systems to produce these hormones in varying amounts.
Professor Graham Burton, Founding Director of the Loke Centre of Trophoblast Research at the University of Cambridge and coauthor of the new paper, said: “The placenta regulates the duration of the pregnancy and the supply of nutrients to the fetus, both of which are crucial for the development of our species’ characteristically large brains. But the advantage of human placentas over those of other primates has been less clear.”
Two previous studies show that levels of oestrogen during pregnancy are higher in human pregnancies than in other primate species.
Another characteristic of humans as a species is our ability to form and maintain large social groups, larger than other primates and other extinct species, such as Neanderthals. But to be able to do this, humans must have adapted in ways that maintain high levels of fertility, while also reducing competition in large groups for mates and resources.
Prenatal sex steroid hormones, such as testosterone and oestrogen, are also important for regulating the way males and females interact and develop, a process known as sex differentiation. For example, having higher testosterone relative to oestrogen leads to more male-like features in anatomy (e.g., in physical size and strength) and in behaviour (e.g., in competition).
But in humans, while these on-average sex differences exist, they are reduced, compared to our closest primate relatives and relative to other extinct human species (such as the Neanderthals). Instead, anatomical features that are specific to humans appear to be related more to aspects of female rather than male biology, and to the effects of oestrogens (e.g., reduced body hair, and a large ratio between the second and fourth digit).
The researchers propose that the key to explain this may lie again with the placenta, which rapidly turns testosterone to oestrogens, using an enzyme called aromatase. Recent discoveries show that humans have higher levels of aromatase compared to macaques, and that males may have slightly higher levels compared to females.
Bringing all these lines of evidence together, the authors propose that high levels of prenatal sex steroid hormones in the womb, combined with increased placental function, may have made human brains larger and more interconnected. At the same time, a lower ratio of androgens (like testosterone) to oestrogens may have led to reductions in competition between males, while also improving fertility in females, allowing humans to form larger, more cohesive social groups.
Professor Simon Baron-Cohen, Director of the Autism Research Centre at the University of Cambridge and joint senior author on the paper, said: “We have been studying the effects of prenatal sex steroids on neurodevelopment for the past 20 years. This has led to the discovery that prenatal sex steroids are important for neurodiversity in human populations. This new hypothesis takes this further in arguing that these hormones may have also shaped the evolution of the human brain.”
Dr Tsompanidis added: “Our hypothesis puts pregnancy at the heart of our story as a species. The human brain is remarkable and unique, but it does not develop in a vacuum. Adaptations in the placenta and the way it produces sex steroid hormones may have been crucial for our brain’s evolution, and for the emergence of the cognitive and social traits that make us human.”
ReferenceTsompanidis, A et al. The placental steroid hypothesis of human brain evolution. Evolutionary Anthropology; 20 June 2025; DOI: 10.1002/evan.70003
The placenta and the hormones it produces may have played a crucial role in the evolution of the human brain, while also leading to the behavioural traits that have made human societies able to thrive and expand, according to a new hypothesis proposed by researchers from the Universities of Cambridge and Oxford.
Our hypothesis puts pregnancy at the heart of our story as a speciesAlex TsompanidisNadzeya Haroshka (Getty Images)Models of a fetus in the womb and of the brain
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Education key to tackling climate misinformation, say Cambridge experts
Representatives from Cambridge University Press & Assessment, Cambridge Zero, Cambridge Institute for Sustainability Leadership and Cambridge Judge Business School convened the session and were joined by a range of experts working on climate change-related research and education. Every speaker from across higher education highlighted the importance of identifying misinformation and disinformation in tackling climate action. Read more about the workshop.
University of Cambridge experts highlighted the key role of education in combatting climate misinformation at a Global Sustainable Development Congress (GDSC) workshop in Turkey.
Photo of group at the conference in Turkey
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Education key to tackling climate misinformation, say Cambridge experts
Representatives from Cambridge University Press & Assessment, Cambridge Zero, Cambridge Institute for Sustainability Leadership and Cambridge Judge Business School convened the session and were joined by a range of experts working on climate change-related research and education. Every speaker from across higher education highlighted the importance of identifying misinformation and disinformation in tackling climate action. Read more about the workshop.
University of Cambridge experts highlighted the key role of education in combatting climate misinformation at a Global Sustainable Development Congress (GDSC) workshop in Turkey.
Photo of group at the conference in Turkey
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Learning to thrive in diverse African habitats allowed early humans to spread across the world
Today, all non-Africans are known to have descended from a small group of people that ventured into Eurasia around 50,000 years ago. However, fossil evidence shows that there were numerous failed dispersals before this time that left no detectable traces in living people.
In a new study published today in the journal in Nature, scientists say that from around 70,000 years ago, early humans began to exploit different habitat types in Africa in ways not seen before.
At this time, our ancestors started to live in the equatorial forests of West and Central Africa, and in the Sahara and Sahel desert regions of North Africa, where they encountered a range of new environmental conditions.
As they adapted to life in these diverse habitats, early humans gained the flexibility to tackle the range of novel environmental conditions they would encounter during their expansion out of Africa.
This increase in the human niche may have been the result of social adaptations, such as long-distance social networks, which allowed for an increase in cultural exchange. The process would have been self-reinforcing: as people started to inhabit a wider proportion of the African continent, regions previously disconnected would have come into contact, leading to further exchanges and possibly even greater flexibility. The final outcome was that our species became the ultimate generalist, able to tackle a wider range of environments.
Andrea Manica, Professor of Evolutionary Ecology in the University of Cambridge’s Department of Zoology, who co-led the study with Professor Eleanor Scerri from the Max Plank Institute of Bioanthropology in Germany, said: “Around 70,000-50,000 years ago, the easiest route out of Africa would have been more challenging than during previous periods, and yet this expansion was big - and ultimately successful.”
Manica added: “It’s incredibly exciting that we were able to look back in time and pinpoint the changes that enabled our ancestors to successfully migrate out of Africa.”
Dr Emily Hallett of Loyola University Chicago, co-lead author of the study, said: “We assembled a dataset of archaeological sites and environmental information covering the last 120,000 years in Africa. We used methods developed in ecology to understand changes in human environmental niches - the habitats humans can use and thrive in - during this time.”
Dr Michela Leonardi at the University of Cambridge and London’s Natural History Museum, the study’s other lead author, said: “Our results showed that the human niche began to expand significantly from 70,000 years ago, and that this expansion was driven by humans increasing their use of diverse habitat types, from forests to arid deserts.”
Many explanations for the uniquely successful dispersal out of Africa have previously been made, from technological innovations, to immunities granted by interbreeding with Eurasian hominins. But there is no evidence of technological innovation, and previous interbreeding does not appear to have helped the long-term success of previous attempts to spread out of Africa.
“Unlike previous humans dispersing out of Africa, those human groups moving into Eurasia after around 60-50,000 years ago were equipped with a distinctive ecological flexibility as a result of coping with climatically challenging habitats,” said Scerri. “This likely provided a key mechanism for the adaptive success of our species beyond their African homeland.”
Previous human dispersals out of Africa - which were not successful in the long term - seem to have happened during particularly favourable windows of increased rainfall in the Saharo-Arabian desert belt, which created ‘green corridors’ for people to move into Eurasia.
The environmental flexibility developed in Africa from around 70,000 years ago ultimately resulted in modern humans’ unique ability to adapt and thrive in diverse environments, and to cope with varying environmental conditions throughout life.
This research was supported by funding from the Max Planck Society, European Research Council and Leverhulme Trust.
Adapted from a press release by the Max Planck Institute of Geoanthropology, Germany
Reference: Hallett, E. Y. et al: ‘Major expansion in the human niche preceded out of Africa dispersal.’ Nature, June 2025. DOI: 10.1038/s41586-025-09154-0.
Before the ‘Out of Africa’ migration that led our ancestors into Eurasia and beyond, human populations learned to adapt to new and challenging habitats including African forests and deserts, which was key to the long-term success of our species’ dispersal.
It’s incredibly exciting that we were able to look back in time and pinpoint the changes that enabled our ancestors to successfully migrate out of Africa.Andrea ManicaOndrej Pelanek and Martin PelanekAfrican Bush Elephant
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Learning to thrive in diverse African habitats allowed early humans to spread across the world
Today, all non-Africans are known to have descended from a small group of people that ventured into Eurasia around 50,000 years ago. However, fossil evidence shows that there were numerous failed dispersals before this time that left no detectable traces in living people.
In a new study published today in the journal in Nature, scientists say that from around 70,000 years ago, early humans began to exploit different habitat types in Africa in ways not seen before.
At this time, our ancestors started to live in the equatorial forests of West and Central Africa, and in the Sahara and Sahel desert regions of North Africa, where they encountered a range of new environmental conditions.
As they adapted to life in these diverse habitats, early humans gained the flexibility to tackle the range of novel environmental conditions they would encounter during their expansion out of Africa.
This increase in the human niche may have been the result of social adaptations, such as long-distance social networks, which allowed for an increase in cultural exchange. The process would have been self-reinforcing: as people started to inhabit a wider proportion of the African continent, regions previously disconnected would have come into contact, leading to further exchanges and possibly even greater flexibility. The final outcome was that our species became the ultimate generalist, able to tackle a wider range of environments.
Andrea Manica, Professor of Evolutionary Ecology in the University of Cambridge’s Department of Zoology, who co-led the study with Professor Eleanor Scerri from the Max Plank Institute of Bioanthropology in Germany, said: “Around 70,000-50,000 years ago, the easiest route out of Africa would have been more challenging than during previous periods, and yet this expansion was big - and ultimately successful.”
Manica added: “It’s incredibly exciting that we were able to look back in time and pinpoint the changes that enabled our ancestors to successfully migrate out of Africa.”
Dr Emily Hallett of Loyola University Chicago, co-lead author of the study, said: “We assembled a dataset of archaeological sites and environmental information covering the last 120,000 years in Africa. We used methods developed in ecology to understand changes in human environmental niches - the habitats humans can use and thrive in - during this time.”
Dr Michela Leonardi at the University of Cambridge and London’s Natural History Museum, the study’s other lead author, said: “Our results showed that the human niche began to expand significantly from 70,000 years ago, and that this expansion was driven by humans increasing their use of diverse habitat types, from forests to arid deserts.”
Many explanations for the uniquely successful dispersal out of Africa have previously been made, from technological innovations, to immunities granted by interbreeding with Eurasian hominins. But there is no evidence of technological innovation, and previous interbreeding does not appear to have helped the long-term success of previous attempts to spread out of Africa.
“Unlike previous humans dispersing out of Africa, those human groups moving into Eurasia after around 60-50,000 years ago were equipped with a distinctive ecological flexibility as a result of coping with climatically challenging habitats,” said Scerri. “This likely provided a key mechanism for the adaptive success of our species beyond their African homeland.”
Previous human dispersals out of Africa - which were not successful in the long term - seem to have happened during particularly favourable windows of increased rainfall in the Saharo-Arabian desert belt, which created ‘green corridors’ for people to move into Eurasia.
The environmental flexibility developed in Africa from around 70,000 years ago ultimately resulted in modern humans’ unique ability to adapt and thrive in diverse environments, and to cope with varying environmental conditions throughout life.
This research was supported by funding from the Max Planck Society, European Research Council and Leverhulme Trust.
Adapted from a press release by the Max Planck Institute of Geoanthropology, Germany
Reference: Hallett, E. Y. et al: ‘Major expansion in the human niche preceded out of Africa dispersal.’ Nature, June 2025. DOI: 10.1038/s41586-025-09154-0.
Before the ‘Out of Africa’ migration that led our ancestors into Eurasia and beyond, human populations learned to adapt to new and challenging habitats including African forests and deserts, which was key to the long-term success of our species’ dispersal.
It’s incredibly exciting that we were able to look back in time and pinpoint the changes that enabled our ancestors to successfully migrate out of Africa.Andrea ManicaOndrej Pelanek and Martin PelanekAfrican Bush Elephant
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cambridge researchers awarded Advanced Grants from the European Research Council
The successful Cambridge grantees’ work covers a range of research areas, including the development of next-generation semiconductors, new methods to identify dyslexia in young children, how diseases spread between humans and animals, and the early changes that happen in cells before breast cancer develops, with the goal of finding ways to stop the disease before it starts.
The funding, worth €721 million in total, will go to 281 leading researchers across Europe. The Advanced Grant competition is one of the most prestigious and competitive funding schemes in the EU and associated countries, including the UK. It gives senior researchers the opportunity to pursue ambitious, curiosity-driven projects that could lead to major scientific breakthroughs. Advanced Grants may be awarded up to € 2.5 million for a period of five years. The grants are part of the EU’s Horizon Europe programme. The UK agreed a deal to associate to Horizon Europe in September 2023.
This competition attracted 2,534 proposals, which were reviewed by panels of internationally renowned researchers. Over 11% of proposals were selected for funding. Estimates show that the grants will create approximately 2,700 jobs in the teams of new grantees. The new grantees will be based at universities and research centres in 23 EU Member States and associated countries, notably in the UK (56 grants), Germany (35), Italy (25), the Netherlands (24), and France (23).
“Many congratulations to our Cambridge colleagues on these prestigious ERC funding awards,” said Professor Sir John Aston, Cambridge’s Pro-Vice-Chancellor for Research. “This type of long-term funding is invaluable, allowing senior researchers the time and space to develop potential solutions for some of biggest challenges we face. We are so fortunate at Cambridge to have so many world-leading researchers across a range of disciplines, and I look forward to seeing the outcomes of their work.”
The Cambridge recipients of 2025 Advanced Grants are:
Professor Clare Bryant (Department of Veterinary Medicine) for investigating human and avian pattern recognition receptor activation of cell death pathways, and the impact on the host inflammatory response to zoonotic infections.
Professor Sir Richard Friend (Cavendish Laboratory/St John’s College) for bright high-spin molecular semiconductors.
Professor Usha Goswami (Department of Psychology/St John’s College) for a cross-language approach to the early identification of dyslexia and developmental language disorder using speech production measures with children.
Professor Regina Grafe (Faculty of History) for colonial credit and financial diversity in the Global South: Spanish America 1600-1820.
Professor Judy Hirst (MRC Mitochondrial Biology Unit/Corpus Christi College) for the energy-converting mechanism of a modular biomachine: Uniting structure and function to establish the engineering principles of respiratory complex I.
Professor Matthew Juniper (Department of Engineering/Trinity College) for adjoint-accelerated inference and optimisation methods.
Professor Walid Khaled (Department of Pharmacology/Magdalene College) for understanding precancerous changes in breast cancer for the development of therapeutic interceptions.
Professor Adrian Liston (Department of Pathology/St Catharine’s College) for dissecting the code for regulatory T cell entry into the tissues and differentiation into tissue-resident cells.
Professor Róisín Owens (Department of Chemical Engineering and Biotechnology/Newnham College) for conformal organic devices for electronic brain-gut readout and characterisation.
Professor Emma Rawlins (Department of Physiology, Development and Neuroscience/Gurdon Institute) for reprogramming lung epithelial cell lineages for regeneration.
Dr Marta Zlatic (Department of Zoology/Trinity College) for discovering the circuit and molecular basis of inter-strain and inter-species differences in learning
“These ERC grants are our commitment to making Europe the world’s hub for excellent research,” said Ekaterina Zaharieva, European Commissioner for Startups, Research, and Innovation. “By supporting projects that have the potential to redefine whole fields, we are not just investing in science but in the future prosperity and resilience of our continent. In the next competition rounds, scientists moving to Europe will receive even greater support in setting up their labs and research teams here. This is part of our “Choose Europe for Science” initiative, designed to attract and retain the world’s top scientists.”
“Much of this pioneering research will contribute to solving some of the most pressing challenges we face - social, economic and environmental,” said Professor Maria Leptin, President of the European Research Council. “Yet again, many scientists - around 260 - with ground-breaking ideas were rated as excellent, but remained unfunded due to a lack of funds at the ERC. We hope that more funding will be available in the future to support even more creative researchers in pursuing their scientific curiosity.”
Eleven senior researchers at the University of Cambridge have been awarded Advanced Grants from the European Research Council – the highest number of grants awarded to any institution in this latest funding round.
Westend61 via Getty ImagesScientist pipetting samples into eppendorf tube
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cambridge researchers awarded Advanced Grants from the European Research Council
The successful Cambridge grantees’ work covers a range of research areas, including the development of next-generation semiconductors, new methods to identify dyslexia in young children, how diseases spread between humans and animals, and the early changes that happen in cells before breast cancer develops, with the goal of finding ways to stop the disease before it starts.
The funding, worth €721 million in total, will go to 281 leading researchers across Europe. The Advanced Grant competition is one of the most prestigious and competitive funding schemes in the EU and associated countries, including the UK. It gives senior researchers the opportunity to pursue ambitious, curiosity-driven projects that could lead to major scientific breakthroughs. Advanced Grants may be awarded up to € 2.5 million for a period of five years. The grants are part of the EU’s Horizon Europe programme. The UK agreed a deal to associate to Horizon Europe in September 2023.
This competition attracted 2,534 proposals, which were reviewed by panels of internationally renowned researchers. Over 11% of proposals were selected for funding. Estimates show that the grants will create approximately 2,700 jobs in the teams of new grantees. The new grantees will be based at universities and research centres in 23 EU Member States and associated countries, notably in the UK (56 grants), Germany (35), Italy (25), the Netherlands (24), and France (23).
“Many congratulations to our Cambridge colleagues on these prestigious ERC funding awards,” said Professor Sir John Aston, Cambridge’s Pro-Vice-Chancellor for Research. “This type of long-term funding is invaluable, allowing senior researchers the time and space to develop potential solutions for some of biggest challenges we face. We are so fortunate at Cambridge to have so many world-leading researchers across a range of disciplines, and I look forward to seeing the outcomes of their work.”
The Cambridge recipients of 2025 Advanced Grants are:
Professor Clare Bryant (Department of Veterinary Medicine) for investigating human and avian pattern recognition receptor activation of cell death pathways, and the impact on the host inflammatory response to zoonotic infections.
Professor Sir Richard Friend (Cavendish Laboratory/St John’s College) for bright high-spin molecular semiconductors.
Professor Usha Goswami (Department of Psychology/St John’s College) for a cross-language approach to the early identification of dyslexia and developmental language disorder using speech production measures with children.
Professor Regina Grafe (Faculty of History) for colonial credit and financial diversity in the Global South: Spanish America 1600-1820.
Professor Judy Hirst (MRC Mitochondrial Biology Unit/Corpus Christi College) for the energy-converting mechanism of a modular biomachine: Uniting structure and function to establish the engineering principles of respiratory complex I.
Professor Matthew Juniper (Department of Engineering/Trinity College) for adjoint-accelerated inference and optimisation methods.
Professor Walid Khaled (Department of Pharmacology/Magdalene College) for understanding precancerous changes in breast cancer for the development of therapeutic interceptions.
Professor Adrian Liston (Department of Pathology/St Catharine’s College) for dissecting the code for regulatory T cell entry into the tissues and differentiation into tissue-resident cells.
Professor Róisín Owens (Department of Chemical Engineering and Biotechnology/Newnham College) for conformal organic devices for electronic brain-gut readout and characterisation.
Professor Emma Rawlins (Department of Physiology, Development and Neuroscience/Gurdon Institute) for reprogramming lung epithelial cell lineages for regeneration.
Dr Marta Zlatic (Department of Zoology/Trinity College) for discovering the circuit and molecular basis of inter-strain and inter-species differences in learning
“These ERC grants are our commitment to making Europe the world’s hub for excellent research,” said Ekaterina Zaharieva, European Commissioner for Startups, Research, and Innovation. “By supporting projects that have the potential to redefine whole fields, we are not just investing in science but in the future prosperity and resilience of our continent. In the next competition rounds, scientists moving to Europe will receive even greater support in setting up their labs and research teams here. This is part of our “Choose Europe for Science” initiative, designed to attract and retain the world’s top scientists.”
“Much of this pioneering research will contribute to solving some of the most pressing challenges we face - social, economic and environmental,” said Professor Maria Leptin, President of the European Research Council. “Yet again, many scientists - around 260 - with ground-breaking ideas were rated as excellent, but remained unfunded due to a lack of funds at the ERC. We hope that more funding will be available in the future to support even more creative researchers in pursuing their scientific curiosity.”
Eleven senior researchers at the University of Cambridge have been awarded Advanced Grants from the European Research Council – the highest number of grants awarded to any institution in this latest funding round.
Westend61 via Getty ImagesScientist pipetting samples into eppendorf tube
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Evolution made us cheats, now free-riders run the world and we need to change, new book warns
In Invisible Rivals, published by Yale University Press today, Dr Goodman argues that throughout human history we have tried to rid our social groups of free-riders, people who take from others without giving anything back. But instead of eliminating free-riders, human evolution has just made them better at hiding their deception.
Goodman explains that humans have evolved to use language to disguise selfish acts and exploit our cooperative systems. He links this ‘invisible rivalry’ to the collapse of trust and consequent success of political strongmen today.
Goodman says: “We see this happening today, as evidenced by the rise of the Julius Caesar of our time—Donald Trump— but it is a situation that evolution has predicted since the origins of life and later, language, and which will only change form again even if the current crises are overcome.”
Goodman argues that over the course of human evolution “When we rid ourselves of ancient, dominant alphas, we traded overt selfishness for something perhaps even darker: the ability to move through society while planning and coordinating.”
“As much as we evolved to use language effectively to work together, to overthrow those brutish and nasty dominants that pervaded ancient society, we also (and do) use language to create opportunities that benefit us … We use language to keep our plans invisible. Humans, more than other known organisms, can cooperate until we imagine a way to compete, exploit, or coerce, and almost always rely on language to do so.”
Goodman, an expert on human social evolution at the University of Cambridge, identifies free-riding behaviour in everything from benefits cheating and tax evasion, to countries dodging action on climate change, and the actions of business leaders and politicians.
Goodman warns that “We can’t stop people free-riding, it’s part of our nature, the incurable syndrome… Free riders are among us at every level of society and pretending otherwise can make our own goals unrealistic, and worse, appear hopeless. But if we accept that we all have this ancient flaw, this ability to deceive ourselves and others, we can design policies around that and change our societies for the better.”
Lessons from our ancestorsGoodman points out that humans evolved in small groups meaning that over many generations we managed to design social norms to govern the distribution of food, water and other vital resources.
“People vied for power but these social norms helped to maintain a trend toward equality, balancing out our more selfish dispositions. Nevertheless, the free-rider problem persisted and using language we got better at hiding our cheating.”
One academic camp has argued that ancient humans used language to work together to overthrow and eject “brutish dominants”. The opposing view claims that this never happened and that humans are inherently selfish and tribal. Goodman rejects both extremes.
“If we accept the view that humans are fundamentally cooperative, we risk trusting blindly. If we believe everyone is selfish, we won’t trust anyone. We need to be realistic about human nature. We’re a bit of both so we need to learn how to place our trust discerningly.”
Goodman points out that our distant ancestors benefitted from risk-pooling systems, whereby all group members contributed labour and shared resources, but this only worked because it is difficult to hide tangible assets such as tools and food. While some hunter-gatherer societies continue to rely on these systems, they are ineffective in most modern societies in our globalized economy.
“Today most of us rely largely on intangible assets for monetary exchange so people can easily hide resources, misrepresent their means and invalidate the effectiveness of social norms around risk pooling,” Goodman says.
“We are flawed animals capable of deception, cruelty, and selfishness. The truth is hard to live with but confronting it through honest reflection about our evolutionary past gives us the tools to teach ourselves and others about how we can improve the future.”
Taking action: self-knowledge, education & policyGoodman, who teaches students at Cambridge about the evolution of cooperation, argues that we reward liars from a young age and that this reinforces bad behaviour into adulthood.
“People tell children that cheaters don’t prosper, but in fact cheats who don’t get caught can do very well for themselves.”
“Evolutionarily speaking, appearing trustworthy but being selfish can be more beneficial to the individual. We need to recognise that and make a moral choice about whether we try to use people or to work with them.”
At the same time, Goodman thinks we need to arm ourselves intellectually with the power to tell who is credible and who is not. “Our most important tool for doing this is education,” he says. “We must teach people to think ethically for themselves, and to give them the tools to do so.”
But Goodman cautions that even the tools we use to expose exploiters are open to exploitation: “Think about how people across the political sphere accuse others of virtue signalling or abusing a well-intentioned political movement for their own gain.”
Goodman believes that exposing free-riders is more beneficial than punishment. “Loss of social capital through reputation is an important motivator for anyone,” he argues, suggesting that journalistic work exposing exploitation can be as effective at driving behaviour change as criminal punishment.
“The dilemma each of us faces now is whether to confront invisible rivalry or to let exploiters undermine society until democracy in the free world unravels—and the freedom of dissent is gone.”
Dr Jonathan R Goodman is a research associate at Cambridge Public Health and a social scientist at the Wellcome Sanger Institute.
Invisible Rivals: How We Evolved to Compete in a Cooperative World is published by Yale University Press on 17 June 2025 (ISBN: 9780300274356)
To save democracy and solve the world's biggest challenges, we need to get better at spotting and exposing people who exploit human cooperation for personal gain, argues Cambridge social scientist Dr Jonathan Goodman.
If we accept that we all have this ancient flaw, we can change our societies for the betterJonathan R GoodmanRalph via PixabayClose up of a handshake between two men wearing suits, with dollar bills in the background
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Evolution made us cheats, now free-riders run the world and we need to change, new book warns
In Invisible Rivals, published by Yale University Press today, Dr Goodman argues that throughout human history we have tried to rid our social groups of free-riders, people who take from others without giving anything back. But instead of eliminating free-riders, human evolution has just made them better at hiding their deception.
Goodman explains that humans have evolved to use language to disguise selfish acts and exploit our cooperative systems. He links this ‘invisible rivalry’ to the collapse of trust and consequent success of political strongmen today.
Goodman says: “We see this happening today, as evidenced by the rise of the Julius Caesar of our time—Donald Trump— but it is a situation that evolution has predicted since the origins of life and later, language, and which will only change form again even if the current crises are overcome.”
Goodman argues that over the course of human evolution “When we rid ourselves of ancient, dominant alphas, we traded overt selfishness for something perhaps even darker: the ability to move through society while planning and coordinating.”
“As much as we evolved to use language effectively to work together, to overthrow those brutish and nasty dominants that pervaded ancient society, we also (and do) use language to create opportunities that benefit us … We use language to keep our plans invisible. Humans, more than other known organisms, can cooperate until we imagine a way to compete, exploit, or coerce, and almost always rely on language to do so.”
Goodman, an expert on human social evolution at the University of Cambridge, identifies free-riding behaviour in everything from benefits cheating and tax evasion, to countries dodging action on climate change, and the actions of business leaders and politicians.
Goodman warns that “We can’t stop people free-riding, it’s part of our nature, the incurable syndrome… Free riders are among us at every level of society and pretending otherwise can make our own goals unrealistic, and worse, appear hopeless. But if we accept that we all have this ancient flaw, this ability to deceive ourselves and others, we can design policies around that and change our societies for the better.”
Lessons from our ancestorsGoodman points out that humans evolved in small groups meaning that over many generations we managed to design social norms to govern the distribution of food, water and other vital resources.
“People vied for power but these social norms helped to maintain a trend toward equality, balancing out our more selfish dispositions. Nevertheless, the free-rider problem persisted and using language we got better at hiding our cheating.”
One academic camp has argued that ancient humans used language to work together to overthrow and eject “brutish dominants”. The opposing view claims that this never happened and that humans are inherently selfish and tribal. Goodman rejects both extremes.
“If we accept the view that humans are fundamentally cooperative, we risk trusting blindly. If we believe everyone is selfish, we won’t trust anyone. We need to be realistic about human nature. We’re a bit of both so we need to learn how to place our trust discerningly.”
Goodman points out that our distant ancestors benefitted from risk-pooling systems, whereby all group members contributed labour and shared resources, but this only worked because it is difficult to hide tangible assets such as tools and food. While some hunter-gatherer societies continue to rely on these systems, they are ineffective in most modern societies in our globalized economy.
“Today most of us rely largely on intangible assets for monetary exchange so people can easily hide resources, misrepresent their means and invalidate the effectiveness of social norms around risk pooling,” Goodman says.
“We are flawed animals capable of deception, cruelty, and selfishness. The truth is hard to live with but confronting it through honest reflection about our evolutionary past gives us the tools to teach ourselves and others about how we can improve the future.”
Taking action: self-knowledge, education & policyGoodman, who teaches students at Cambridge about the evolution of cooperation, argues that we reward liars from a young age and that this reinforces bad behaviour into adulthood.
“People tell children that cheaters don’t prosper, but in fact cheats who don’t get caught can do very well for themselves.”
“Evolutionarily speaking, appearing trustworthy but being selfish can be more beneficial to the individual. We need to recognise that and make a moral choice about whether we try to use people or to work with them.”
At the same time, Goodman thinks we need to arm ourselves intellectually with the power to tell who is credible and who is not. “Our most important tool for doing this is education,” he says. “We must teach people to think ethically for themselves, and to give them the tools to do so.”
But Goodman cautions that even the tools we use to expose exploiters are open to exploitation: “Think about how people across the political sphere accuse others of virtue signalling or abusing a well-intentioned political movement for their own gain.”
Goodman believes that exposing free-riders is more beneficial than punishment. “Loss of social capital through reputation is an important motivator for anyone,” he argues, suggesting that journalistic work exposing exploitation can be as effective at driving behaviour change as criminal punishment.
“The dilemma each of us faces now is whether to confront invisible rivalry or to let exploiters undermine society until democracy in the free world unravels—and the freedom of dissent is gone.”
Dr Jonathan R Goodman is a research associate at Cambridge Public Health and a social scientist at the Wellcome Sanger Institute.
Invisible Rivals: How We Evolved to Compete in a Cooperative World is published by Yale University Press on 17 June 2025 (ISBN: 9780300274356)
To save democracy and solve the world's biggest challenges, we need to get better at spotting and exposing people who exploit human cooperation for personal gain, argues Cambridge social scientist Dr Jonathan Goodman.
If we accept that we all have this ancient flaw, we can change our societies for the betterJonathan R GoodmanRalph via PixabayClose up of a handshake between two men wearing suits, with dollar bills in the background
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cambridge PhD student heading to CERN for the International FameLab final
After winning a nail-biting East of England final, which was held as part of the Cambridge Festival in April 2025, Spatika went on to represent the East of England in the UK final with her presentation on Time Travel with Your Brain. She will now go on to represent the UK in the International Final taking place live at CERN Science Gateway in Switzerland to mark the 20 year anniversary of the competition.
“I was so surprised I won!”, said Spatika. “The other communicators were fantastic and we travelled through so many topics from planets to parasites and more!”.
Spatika took part in FameLab because she enjoyed talking about science to non-scientists and bringing some meaning to the complex work taking place in the labs. “I wanted a chance to bring humour into the science, because most of the times science is presented in professional environments, it’s all very serious”, added Spatika.
“I would recommend FameLab for anyone who’s even a tiny bit interested in knowing what happens to science when it’s let out in the wild!”
Claudia Antolini, Public Engagement Manager at the University of Cambridge said, “We are delighted for Spatika to represent the UK at the International FameLab final. Both at the East of England regional competition and the UK final Spatika gave outstanding performances, scientifically accurate but also extremely engaging with wise-cracking humour. We wish her the best of luck and we look forward to cheering her on for the International Final.”
The FameLab final will be streamed live from CERN on YouTube.
Spatika Jayaram is a PhD student and Gates Cambridge Scholar in the Department of Physiology, Development and Neuroscience and Magdalene College. In her research, she looks at social and emotional behaviours emerging across development, and how regions within the prefrontal cortex contribute to their regulation.
FameLab was created by Cheltenham Festivals in 2005 and is the largest science communication competition and training programme in the world. Participants have just three minutes to convey a scientific concept of their choice to an audience and expert panel of judges with no presentations and limited props.
Earlier this month, Cambridge PhD student Spatika Jayaram was crowned the winner of the FameLab 2025 UK final at this year’s Cheltenham Science Festival.
Still Moving Media for Cheltenham Festivals
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cambridge PhD student heading to CERN for the International FameLab final
After winning a nail-biting East of England final, which was held as part of the Cambridge Festival in April 2025, Spatika went on to represent the East of England in the UK final with her presentation on Time Travel with Your Brain. She will now go on to represent the UK in the International Final taking place live at CERN Science Gateway in Switzerland to mark the 20 year anniversary of the competition.
“I was so surprised I won!”, said Spatika. “The other communicators were fantastic and we travelled through so many topics from planets to parasites and more!”.
Spatika took part in FameLab because she enjoyed talking about science to non-scientists and bringing some meaning to the complex work taking place in the labs. “I wanted a chance to bring humour into the science, because most of the times science is presented in professional environments, it’s all very serious”, added Spatika.
“I would recommend FameLab for anyone who’s even a tiny bit interested in knowing what happens to science when it’s let out in the wild!”
Claudia Antolini, Public Engagement Manager at the University of Cambridge said, “We are delighted for Spatika to represent the UK at the International FameLab final. Both at the East of England regional competition and the UK final Spatika gave outstanding performances, scientifically accurate but also extremely engaging with wise-cracking humour. We wish her the best of luck and we look forward to cheering her on for the International Final.”
The FameLab final will be streamed live from CERN on YouTube.
Spatika Jayaram is a PhD student and Gates Cambridge Scholar in the Department of Physiology, Development and Neuroscience and Magdalene College. In her research, she looks at social and emotional behaviours emerging across development, and how regions within the prefrontal cortex contribute to their regulation.
FameLab was created by Cheltenham Festivals in 2005 and is the largest science communication competition and training programme in the world. Participants have just three minutes to convey a scientific concept of their choice to an audience and expert panel of judges with no presentations and limited props.
Earlier this month, Cambridge PhD student Spatika Jayaram was crowned the winner of the FameLab 2025 UK final at this year’s Cheltenham Science Festival.
Still Moving Media for Cheltenham Festivals
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Pilkington Prizes awarded to teaching staff
This year's prize winners are;
Dr Tore Butlin - Department of Engineering/Queens' College
Tore has played a key role in reshaping the engineering course content and led the design of the new IA mechanics syllabus.
Dr Alexander Carter - Institute of Continuing Education/Fitzwilliam College
As Academic Director for Philosophy & Interdisciplinary Studies, Alexander leads a broad-ranging portfolio of undergraduate and postgraduate courses in philosophy, creativity theory and research skills.
Dr Nicholas Evans - Department of Clinical Neurosciences/Wolfson College
Nicholas has demonstrated an impressive commitment to medical education at the Clinical School for over a decade. As a mentor he has also shown a keen interest in student welfare.
Dr James Fergusson - Department of Applied Mathematics and Theoretical Physics
James is an outstanding lecturer who brings outstanding passion to everything he does. He has been heavily involved in establishing and supporting the new MPhil in Data Intensive science.
Dr Marta Halina - Department of History and Philosophy of Science/Selwyn College
Marta has almost single-handedly overhauled the History and Philosophy of Science Tripos making it a more sought after course. She has led a major restructuring of the MPhil course and has introduced the increasingly popular module, AI in healthcare.
Paul Hoegger - University Language Centre/Faculty of Modern and Medieval Languages and Linguistics/Fitzwilliam College
Paul is a teacher of German much respected by generations of students. Over the years he has created several new courses including one on German literature through the ages and one on the poetry of Schubert.
Dr Kate Hughes - Department of Veterinary Medicine/Girton College
Kate makes a valued contribution to Years 4 - 6 of the veterinary programme. She led the design of a new final year rotation in anatomic pathology for which she is educational lead.
Dr Mairi Kilkenny - Department of Biochemistry/Queen's College
Mairi delivers innovative and creative teaching with the Department of Biochemistry often incorporating digital media to stimulate the interest of her students. She's also a supervisor for several Colleges.
Dr Ewa Marek - Department of Chemical Engineering and Biotechnology/Jesus College
Ewa is a valued lecturer, supervisor and Director of Studies. Passionate about sustainability, Ewa developed a new Part 1A course which introduces the topic in the context of chemical and biochemical engineering.
Dr Isabelle McNeill - Faculty of Modern and Medieval Languages and Linguistics/Trinity Hall
Isabelle was a passionate and outstanding teacher who made vibrant contributions to French and to Film and Screen within the Faculty. A co-founder and trustee of the Cambridge Film Trust, Isabelle was made aware of her prize two days before she sadly passed away in February. She will be much missed by colleagues and students alike.
Dr Ali Meghji - Department of Sociology/Sidney Sussex College
Ali has been instrumental in creating a whole new Tripos paper in the Department (Empire, Colonialism, Imperialism). As a teacher, he repeatedly receives glowing comments from students on the clarity of his exposition, the contemporary relevance of his topics, and his effective use of technology.
Dr Liam Saddington - Department of Geography/Lucy Cavendish College
Liam was recruited as Training and Skills Director for the Tripos with a remit to oversee the quantitative and qualitative research training across the degree. He has led new innovations, such as creating a museum field trip for first-year students, organising a 'COP Cambridge' simulation for second-year students, and developing the dissertation 'research carousel'.
Dr Christopher Tilmouth - Faculty of English
Chris' visionary leadership has reshaped both undergraduate and postgraduate education at Cambridge. As Director of Undergraduate Studies, Chris introduced critical reforms to enhance student progression.
Dr Juliet Usher-Smith - Department of Public Health and Primary Care/Emmanuel College
Juliet has made important contributions to the Department through direct teaching, supervision and mentoring and goes the extra mile to foster a culture in which teaching and learning is valued by all.
The winners were presented with their awards by the University's Vice-Chancellor, Professor Deborah Prentice, at a ceremony also attended by Senior Pro-Vice-Chancellor (Education and Environmental Sustainability), Professor Bhaskar Vira. He said “The Pilkington Prize Award ceremony is one of my favourite events in the University calendar. It’s always deeply satisfying to see hard-working staff recognised for their commitment and dedication to teaching and learning. We all know that behind every great student is a great teacher and I feel privileged to work alongside such excellent colleagues.”
A total of fourteen dedicated and talented staff have been awarded the Pilkington Prize this year. The annual prizes are awarded in the name of Sir Alastair Pilkington to acknowledge excellence in teaching and to recognise the contribution each individual makes to a Department or Faculty.
It’s always deeply satisfying to see hard-working staff recognised for their commitment and dedication to teaching and learningProf Bhaskar ViraLloyd Mann Winners of the 2025 Pilkington Prize
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Pilkington Prizes awarded to teaching staff
This year's prize winners are;
Dr Tore Butlin - Department of Engineering/Queens' College
Tore has played a key role in reshaping the engineering course content and led the design of the new IA mechanics syllabus.
Dr Alexander Carter - Institute of Continuing Education/Fitzwilliam College
As Academic Director for Philosophy & Interdisciplinary Studies, Alexander leads a broad-ranging portfolio of undergraduate and postgraduate courses in philosophy, creativity theory and research skills.
Dr Nicholas Evans - Department of Clinical Neurosciences/Wolfson College
Nicholas has demonstrated an impressive commitment to medical education at the Clinical School for over a decade. As a mentor he has also shown a keen interest in student welfare.
Dr James Fergusson - Department of Applied Mathematics and Theoretical Physics
James is an outstanding lecturer who brings outstanding passion to everything he does. He has been heavily involved in establishing and supporting the new MPhil in Data Intensive science.
Dr Marta Halina - Department of History and Philosophy of Science/Selwyn College
Marta has almost single-handedly overhauled the History and Philosophy of Science Tripos making it a more sought after course. She has led a major restructuring of the MPhil course and has introduced the increasingly popular module, AI in healthcare.
Paul Hoegger - University Language Centre/Faculty of Modern and Medieval Languages and Linguistics/Fitzwilliam College
Paul is a teacher of German much respected by generations of students. Over the years he has created several new courses including one on German literature through the ages and one on the poetry of Schubert.
Dr Kate Hughes - Department of Veterinary Medicine/Girton College
Kate makes a valued contribution to Years 4 - 6 of the veterinary programme. She led the design of a new final year rotation in anatomic pathology for which she is educational lead.
Dr Mairi Kilkenny - Department of Biochemistry/Queen's College
Mairi delivers innovative and creative teaching with the Department of Biochemistry often incorporating digital media to stimulate the interest of her students. She's also a supervisor for several Colleges.
Dr Ewa Marek - Department of Chemical Engineering and Biotechnology/Jesus College
Ewa is a valued lecturer, supervisor and Director of Studies. Passionate about sustainability, Ewa developed a new Part 1A course which introduces the topic in the context of chemical and biochemical engineering.
Dr Isabelle McNeill - Faculty of Modern and Medieval Languages and Linguistics/Trinity Hall
Isabelle was a passionate and outstanding teacher who made vibrant contributions to French and to Film and Screen within the Faculty. A co-founder and trustee of the Cambridge Film Trust, Isabelle was made aware of her prize two days before she sadly passed away in February. She will be much missed by colleagues and students alike.
Dr Ali Meghji - Department of Sociology/Sidney Sussex College
Ali has been instrumental in creating a whole new Tripos paper in the Department (Empire, Colonialism, Imperialism). As a teacher, he repeatedly receives glowing comments from students on the clarity of his exposition, the contemporary relevance of his topics, and his effective use of technology.
Dr Liam Saddington - Department of Geography/Lucy Cavendish College
Liam was recruited as Training and Skills Director for the Tripos with a remit to oversee the quantitative and qualitative research training across the degree. He has led new innovations, such as creating a museum field trip for first-year students, organising a 'COP Cambridge' simulation for second-year students, and developing the dissertation 'research carousel'.
Dr Christopher Tilmouth - Faculty of English
Chris' visionary leadership has reshaped both undergraduate and postgraduate education at Cambridge. As Director of Undergraduate Studies, Chris introduced critical reforms to enhance student progression.
Dr Juliet Usher-Smith - Department of Public Health and Primary Care/Emmanuel College
Juliet has made important contributions to the Department through direct teaching, supervision and mentoring and goes the extra mile to foster a culture in which teaching and learning is valued by all.
The winners were presented with their awards by the University's Vice-Chancellor, Professor Deborah Prentice, at a ceremony also attended by Senior Pro-Vice-Chancellor (Education and Environmental Sustainability), Professor Bhaskar Vira. He said “The Pilkington Prize Award ceremony is one of my favourite events in the University calendar. It’s always deeply satisfying to see hard-working staff recognised for their commitment and dedication to teaching and learning. We all know that behind every great student is a great teacher and I feel privileged to work alongside such excellent colleagues.”
A total of fourteen dedicated and talented staff have been awarded the Pilkington Prize this year. The annual prizes are awarded in the name of Sir Alastair Pilkington to acknowledge excellence in teaching and to recognise the contribution each individual makes to a Department or Faculty.
It’s always deeply satisfying to see hard-working staff recognised for their commitment and dedication to teaching and learningProf Bhaskar ViraLloyd Mann Winners of the 2025 Pilkington Prize
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cambridge University academics recognised in King’s Birthday Honours 2025
Cambridge Zero Director Professor Emily Shuckburgh (Fellow of Darwin, Trinity alumna) has received a CBE for services to Climate Science and to the Public Communication of Climate Science.
"I am deeply honoured to accept this recognition, which is a reflection of the collective efforts of many scientists, communicators, educators, and advocates who strive every day to make climate science accurate, accessible and actionable at a time when honesty, clarity and urgency are more important than ever,” Professor Shuckburgh said.
Alongside leading the University of Cambridge’s major climate change initiative, Cambridge Zero, Emily is also Professor of Environmental Data Science at the Department of Computer Science and Technology. Her primary research is focused on the application of AI to climate science and in this context she is Academic Director of the Institute of Computing for Climate Science, and co-Director of the UKRI Centre for Doctoral Training on the Application of AI to the study of Environmental Risks (AI4ER).
Professor Gordon Dougan (Fellow of Wolfson College), an Emeritus Professor who continues to work in the University’s Department of Medicine, and former Director of the Infection Health Challenge area at Wellcome, UK, has been awarded a CBE For services to Vaccines and to Global Health.
Prof Dougan is an internationally recognised expert in vaccinology, global health and infections. He was Head of Pathogens at The Wellcome Sanger Institute (WTSI) for over a decade and worked in the pharmaceutical industry (Wellcome Foundation/GSK) for part of his career, developing novel vaccines and other medicines. He has worked as an advisor to health agencies, industry, academia and regulatory agencies. He is an expert on the molecular basis of infection with a strong emphasis on pathogenic mechanisms/immunity, genomics, disease tracking and antibiotic resistance. He is currently President of the Microbiology Society of the UK.
He said: “I am delighted to receive this important recognition for my work and the people I have worked with and for. Applying science to the benefit of people and health is what I have been working toward throughout my career. I can recommend this path to anyone.”
Details of University alumni who are recognised in the King's Birthday Honours will be published on www.alumni.cam.ac.uk.
The University extends its congratulations to all academics, staff and alumni who have received an honour.
Academics at the University of Cambridge are among those featured in the King's Birthday Honours 2025, which recognises the achievements and contributions of people across the UK.
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
Cambridge University academics recognised in King’s Birthday Honours 2025
Cambridge Zero Director Professor Emily Shuckburgh (Fellow of Darwin, Trinity alumna) has received a CBE for services to Climate Science and to the Public Communication of Climate Science.
"I am deeply honoured to accept this recognition, which is a reflection of the collective efforts of many scientists, communicators, educators, and advocates who strive every day to make climate science accurate, accessible and actionable at a time when honesty, clarity and urgency are more important than ever,” Professor Shuckburgh said.
Alongside leading the University of Cambridge’s major climate change initiative, Cambridge Zero, Emily is also Professor of Environmental Data Science at the Department of Computer Science and Technology. Her primary research is focused on the application of AI to climate science and in this context she is Academic Director of the Institute of Computing for Climate Science, and co-Director of the UKRI Centre for Doctoral Training on the Application of AI to the study of Environmental Risks (AI4ER).
Professor Gordon Dougan (Fellow of Wolfson College), an Emeritus Professor who continues to work in the University’s Department of Medicine, and former Director of the Infection Health Challenge area at Wellcome, UK, has been awarded a CBE For services to Vaccines and to Global Health.
Prof Dougan is an internationally recognised expert in vaccinology, global health and infections. He was Head of Pathogens at The Wellcome Sanger Institute (WTSI) for over a decade and worked in the pharmaceutical industry (Wellcome Foundation/GSK) for part of his career, developing novel vaccines and other medicines. He has worked as an advisor to health agencies, industry, academia and regulatory agencies. He is an expert on the molecular basis of infection with a strong emphasis on pathogenic mechanisms/immunity, genomics, disease tracking and antibiotic resistance. He is currently President of the Microbiology Society of the UK.
He said: “I am delighted to receive this important recognition for my work and the people I have worked with and for. Applying science to the benefit of people and health is what I have been working toward throughout my career. I can recommend this path to anyone.”
Details of University alumni who are recognised in the King's Birthday Honours will be published on www.alumni.cam.ac.uk.
The University extends its congratulations to all academics, staff and alumni who have received an honour.
Academics at the University of Cambridge are among those featured in the King's Birthday Honours 2025, which recognises the achievements and contributions of people across the UK.
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
How ‘supergenes’ help fish evolve into new species
Why are there so many different kinds of animals and plants on Earth? One of biology’s big questions is how new species arise and how nature’s incredible diversity came to be.
Cichlid fish from Lake Malawi in East Africa offer a clue. In this single lake, over 800 different species have evolved from a common ancestor in a fraction of the time it took for humans and chimpanzees to evolve from their common ancestor.
What’s even more remarkable is that the diversification of cichlids happened all in the same body of water. Some of these fish became large predators, others adapted to eat algae, sift through sand, or feed on plankton. Each species found its own ecological niche.
Now, researchers from the Universities of Cambridge and Antwerp have determined how this evolution may have happened so quickly. Their results are reported in the journal Science.
The researchers looked at the DNA of over 1,300 cichlids to see if there’s something special about their genes that might explain this rapid evolution. “We discovered that, in some species, large chunks of DNA on five chromosomes are flipped – a type of mutation called a chromosomal inversion,” said senior author Hennes Svardal from the University of Antwerp.
Normally, when animals reproduce, their DNA gets reshuffled in a process called recombination – mixing the genetic material from both parents. But this mixing is blocked within a chromosomal inversion. This means that gene combinations within the inversion are passed down intact without mixing, generation after generation, keeping useful adaptations together and speeding up evolution.
“It’s sort of like a toolbox where all the most useful tools are stuck together, preserving winning genetic combinations that help fish adapt to different environments,” said first author Moritz Blumer from Cambridge’s Department of Genetics.
These preserved sets of genes are sometimes called ‘supergenes. In Malawi cichlids, the supergenes seem to play several important roles. Although cichlid species can still interbreed, the inversions help keep species separate by preventing their genes from blending too much. This is especially useful in parts of the lake where fish live side by side – like in open sandy areas where there’s no physical separation between habitats.
The genes inside these supergenes often control traits that are key for survival and reproduction – such as vision, hearing, and behaviour. For example, fish living deep in the lake (down to 200 meters) need different visual abilities than those near the surface, require different food, and need to survive at higher pressures. Their supergenes help maintain those special adaptations.
“When different cichlid species interbred, entire inversions can be passed between them – bringing along key survival traits, like adaptations to specific environments, speeding up the process of evolution,” said Blumer.
The inversions also frequently act as sex chromosomes, helping determine whether a fish becomes male or female. Since sex chromosomes can influence how new species form, this opens new questions about how evolution works.
“While our study focused on cichlids, chromosomal inversions aren’t unique to them,” said co-senior author Professor Richard Durbin, from Cambridge’s Department of Genetics. “They’re also found in many other animals — including humans — and are increasingly seen as a key factor in evolution and biodiversity.”
“We have been studying the process of speciation for a long time,” said Svardal. “Now, by understanding how these supergenes evolve and spread, we’re getting closer to answering one of science’s big questions: how life on Earth becomes so rich and varied.”
Reference:
L. M. Blumer, V. Burskaia, I. Artiushin, J. Saha et al. ‘Introgression dynamics of sex- linked chromosomal inversions shape the Malawi cichlid radiation.’ Science (2025). DOI: 10.1126/science.adr9961
Researchers have found that chunks of ‘flipped’ DNA can help fish quickly adapt to new habitats and evolve into new species, acting as evolutionary ‘superchargers’.
banusevim via Getty ImagesDolphin cichlid (Cyrtocara moorii)
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.
How ‘supergenes’ help fish evolve into new species
Why are there so many different kinds of animals and plants on Earth? One of biology’s big questions is how new species arise and how nature’s incredible diversity came to be.
Cichlid fish from Lake Malawi in East Africa offer a clue. In this single lake, over 800 different species have evolved from a common ancestor in a fraction of the time it took for humans and chimpanzees to evolve from their common ancestor.
What’s even more remarkable is that the diversification of cichlids happened all in the same body of water. Some of these fish became large predators, others adapted to eat algae, sift through sand, or feed on plankton. Each species found its own ecological niche.
Now, researchers from the Universities of Cambridge and Antwerp have determined how this evolution may have happened so quickly. Their results are reported in the journal Science.
The researchers looked at the DNA of over 1,300 cichlids to see if there’s something special about their genes that might explain this rapid evolution. “We discovered that, in some species, large chunks of DNA on five chromosomes are flipped – a type of mutation called a chromosomal inversion,” said senior author Hennes Svardal from the University of Antwerp.
Normally, when animals reproduce, their DNA gets reshuffled in a process called recombination – mixing the genetic material from both parents. But this mixing is blocked within a chromosomal inversion. This means that gene combinations within the inversion are passed down intact without mixing, generation after generation, keeping useful adaptations together and speeding up evolution.
“It’s sort of like a toolbox where all the most useful tools are stuck together, preserving winning genetic combinations that help fish adapt to different environments,” said first author Moritz Blumer from Cambridge’s Department of Genetics.
These preserved sets of genes are sometimes called ‘supergenes. In Malawi cichlids, the supergenes seem to play several important roles. Although cichlid species can still interbreed, the inversions help keep species separate by preventing their genes from blending too much. This is especially useful in parts of the lake where fish live side by side – like in open sandy areas where there’s no physical separation between habitats.
The genes inside these supergenes often control traits that are key for survival and reproduction – such as vision, hearing, and behaviour. For example, fish living deep in the lake (down to 200 meters) need different visual abilities than those near the surface, require different food, and need to survive at higher pressures. Their supergenes help maintain those special adaptations.
“When different cichlid species interbred, entire inversions can be passed between them – bringing along key survival traits, like adaptations to specific environments, speeding up the process of evolution,” said Blumer.
The inversions also frequently act as sex chromosomes, helping determine whether a fish becomes male or female. Since sex chromosomes can influence how new species form, this opens new questions about how evolution works.
“While our study focused on cichlids, chromosomal inversions aren’t unique to them,” said co-senior author Professor Richard Durbin, from Cambridge’s Department of Genetics. “They’re also found in many other animals — including humans — and are increasingly seen as a key factor in evolution and biodiversity.”
“We have been studying the process of speciation for a long time,” said Svardal. “Now, by understanding how these supergenes evolve and spread, we’re getting closer to answering one of science’s big questions: how life on Earth becomes so rich and varied.”
Reference:
L. M. Blumer, V. Burskaia, I. Artiushin, J. Saha et al. ‘Introgression dynamics of sex- linked chromosomal inversions shape the Malawi cichlid radiation.’ Science (2025). DOI: 10.1126/science.adr9961
Researchers have found that chunks of ‘flipped’ DNA can help fish quickly adapt to new habitats and evolve into new species, acting as evolutionary ‘superchargers’.
banusevim via Getty ImagesDolphin cichlid (Cyrtocara moorii)
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.