Fossilized comb jellies, or ctenophores, are rare because the creatures are almost completely soft-bodied. Rare fossil finds are helping us learn more about ancient animals and evolution.
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Articles sur Evolution
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Archaehierax sylvestris, whose remains have been unearthed in the arid South Australian outback, was the apex predator in a lush prehistoric forest filled with marsupials and waterfowl.
The researchers found tooth shape varied, depending on the types of food a carnivore regularly bites into – in much the same way we choose a kitchen knife depending on what we’re cutting up.
Differences between male and female skulls in some species of gibbon may shed light on how our extinct ancestors lived.
‘Shape shifting’ animals are evolving to deal with heat – by changing the size of their ears, tails, bills and other appendages.
Plants use their flower colours for ‘brand recognition’ among insects - but also work together to attract more pollinators.
Many small animals make their teeth and claws from a smooth blend of proteins and heavy elements. These materials can form very sharp tools that make it possible to cut tough substances using tiny muscles.
A 2015 paper on chicken virus evolution is being taken out of context and used to fuel fears about COVID-19 vaccines. Its lead author aims to clarify the science in hopes of saving lives.
Evolution explains why the Delta variant spreads faster than the original Wuhan strain. It explains what we might see with future variants. And it suggests how we might step up public health measures.
Corals in the Persian Gulf are tough - they can withstand temperatures that would kill corals elsewhere. And there’s good news: it’s easy to cross-breed their heat-tolerance genes into other corals.
How have snakes evolved venom fangs so many times in their evolutionary history? Research suggests it’s due to a structure called ‘plicidentine’ in their teeth that can evolve into venom grooves.
It’s not just issues like climate change and vaccines that pose problems for conservative thinkers – it’s the way science itself is conducted.
A wide range of animals seem to have a grasp of numbers – but humans hold the trump card.
They can open jars, use tools, remember instructions and attack on command. But they’re still not the smartest cephalopod in the sea…
Warm-blooded fish can swim 1.6 times faster than their cold-blooded relatives.
Both men and women play a role in perpetuating attitudes toward sex that are hypocritical and logically inconsistent.
Jackals appeared and established themselves in Africa in at least the last five million years. These animals have evolved and adapted to the changing environment, allowing them to survive.
The sexual selection of larger males may be driven by an abundance – not a scarcity – of females.
Ophiojura, discovered living on a seamount deep in the Pacific Ocean, is the last known survivor of a unique group of animals that diverged from its closest relatives way back in the Jurassic period.
This is a crucial dinosaur for palaeontologists; the variety of fossils available means researchers can study the species’ growth through its whole life span.
Les contributeurs les plus fréquents
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Strategic Professor in Palaeontology, Flinders University
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Scientia Professor of Evolutionary Ecology; Academic Lead of UNSW's Grand Challenges Program, UNSW Sydney
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Professor in Evolutionary Biology (jointly appointed with South Australian Museum), Flinders University
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Honorary Associate Professor, UNSW Sydney
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Senior Lecturer in Paleontology and Evolutionary Biology, Life Sciences at the University of Bath, University of Bath
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Professor of Evolutionary Palaeobiology at the Milner Centre for Evolution, University of Bath
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Associate Professor, Department of Physiology, Monash University
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Senior Researcher in Vertebrate Palaeontology, University of the Witwatersrand
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Adjunct Research Associate, Monash University
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Jenny Graves est un·e adhérent·e de The Conversation
Distinguished Professor of Genetics and Vice Chancellor's Fellow, La Trobe University
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Principal Lecturer in Wildlife Conservation, Nottingham Trent University
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Mark Elgar est un·e adhérent·e de The Conversation
Professor of Evolutionary Biology, The University of Melbourne
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Professor of Natural Sciences, UCL
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Senior lecturer, School of Biological Sciences, University of Bristol, University of Bristol
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Postdoctoral Research Fellow in Evolutionary Ecology, Griffith University
