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University of Bristol


Amphibians bounce-back from Earth’s greatest mass extinction

Researchers found that ancient frog relatives thrived after the Permian-Triassic mass extinction due to their generalist feeding ecology and ability to feed on a wide variety of prey. They were able to survive and even flourish in freshwater habitats, which provided them with stable food resources amidst the turbulent Triassic ecosystem.

SourceUniversity of Bristol·JournalRoyal Society Open Science·TypeData/statistical analysis·DateMar 4, 2025

Bristol scientists herald active matter breakthrough with creation of three-dimensional ‘synthetic worms’

Researchers at the University of Bristol have developed 'synthetic worms' that can move independently using active matter, a new class of materials. The 3D structures were created by applying an electric field to micron-sized particles suspended in a liquid mixture, and exhibit fascinating life-like behavior.

SourceUniversity of Bristol·JournalPhysical Review Letters·TypeExperimental study·DateFeb 13, 2025

Mechanical heart valve replacements have better long-term survival, study finds

A new study published in the European Journal of Cardio-Thoracic Surgery found that mechanical heart valve replacements have better long-term survival rates compared to biological valves. Patients who received mechanical valves had improved survival up to 13 years after surgery, with smaller valves showing greater benefits.

SourceUniversity of Bristol·JournalEuropean Journal of Cardio-Thoracic Surgery·TypeObservational study·DateFeb 11, 2025

Child mortality has risen since pandemic, new study shows

A new study from the University of Bristol reveals that child mortality in England has increased since the pandemic lifted, with a temporary decrease in deaths during lockdowns. The research found that children from non-white backgrounds faced higher rates of death compared to white children, highlighting existing healthcare inequalities.

SourceUniversity of Bristol·JournalPLOS Medicine·TypeData/statistical analysis·DateJan 23, 2025

Waking up is not stressful, study finds

Researchers at the University of Bristol found no increase in cortisol release after waking, contrary to long-held assumptions. The study's findings suggest that daily cortisol rhythms may play a more significant role in regulating stress responses.

SourceUniversity of Bristol·JournalProceedings of the Royal Society B Biological Sciences·TypeObservational study·DateJan 14, 2025

World’s oldest lizard wins fossil fight

A fossilized skeleton found in Bristol has been identified as Cryptovaranoides microlanius, a tiny lizard with sharp teeth, and dated to the Triassic period. The discovery shifts the origin of the Squamata group back by 35 million years, confirming its relationship to modern anguimorphs.

SourceUniversity of Bristol·JournalRoyal Society Open Science·TypeComputational simulation/modeling·DateNov 26, 2024

Pioneering research reveals some of the world’s least polluting populations are at much greater risk of flooding fuelled by climate change

A new study reveals nearly one in five people in Small Island Developing States are exposed to coastal and inland flooding, trebling to over 60% in some countries. Climate change is exacerbating the risk of flooding across these nations, with even a 1.5°C increase projected to affect over 20% of populations.

SourceUniversity of Bristol·JournalEnvironmental Research Letters·DateNov 7, 2024

Brazilian fossils reveal jaw-dropping discovery in mammal evolution

The study uncovers a 'mammalian-style' contact between the skull and lower jaw in a cynodont species, indicating that the defining mammalian jaw feature evolved multiple times in different lineages. This complex evolutionary history suggests that early mammals experimented with various jaw functions, leading to the evolution of 'mammal...

SourceUniversity of Bristol·JournalNature·TypeComputational simulation/modeling·DateSep 25, 2024

Life after (feigned) death

A new study by the University of Bristol reveals that animals feigning death to avoid predators will seek safety in a suitable environment. The study found that the movement dynamics of antlion larvae after feigning death depend on the available escape strategies.

SourceUniversity of Bristol·JournalPLOS ONE·DateAug 22, 2024

Ancient marine animal had inventive past despite being represented by few species, new study finds

A new study reveals that brachiopods, despite being represented by few species, were evolving new shell shapes and ecological behaviors after the end-Permian mass extinction. The research found that disparity and diversity are decoupled in brachiopod history, with innovative shell forms not translating to many new species.

SourceUniversity of Bristol·JournalNature Ecology & Evolution·TypeSystematic review·DateJul 25, 2024

Butterflies accumulate enough static electricity to attract pollen without contact, new research finds

Researchers found that butterflies and moths collect enough static electricity while flying to attract pollen from flowers across air gaps of several millimeters or centimeters. This discovery suggests a trait that can be adaptive, allowing evolution to act upon it through natural selection.

SourceUniversity of Bristol·JournalJournal of The Royal Society Interface·TypeExperimental study·DateJul 23, 2024

Smell of human stress affects dogs’ emotions leading them to make more pessimistic choices

A study found that dogs make more pessimistic choices when exposed to the smell of human stress, reflecting a negative emotional state. The researchers used an observational study with 18 dog-owner partnerships and found that dogs improved their learning about food presence in two trained bowl locations when exposed to stress smells.

SourceUniversity of Bristol·JournalScientific Reports·TypeObservational study·DateJul 22, 2024