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.
Eristalis tenax) feeding on marigold.
Plants use their flower colours for ‘brand recognition’ among insects - but also work together to attract more pollinators.
A close-up of the head of a leafcutter ant, Atta cephalotes, showing the metal-infused teeth on its mandibles.
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.
Vaccines against COVID-19 are the safest – and fastest – way to prevent the spread of variants.
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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.
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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…
Some sharks are warm-blooded.
Warm-blooded fish can swim 1.6 times faster than their cold-blooded relatives.
The mating game often involves convoluted rationalizations.
Both men and women play a role in perpetuating attitudes toward sex that are hypocritical and logically inconsistent.
Fossil of the skull and.
mandibles of the new species.
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.
Males elephant seals dwarf their female counterparts.
The sexual selection of larger males may be driven by an abundance – not a scarcity – of females.
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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.
Massospondylus fossils help researchers develop a full picture of this dinosaur species.
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This is a crucial dinosaur for palaeontologists; the variety of fossils available means researchers can study the species’ growth through its whole life span.
Long misunderstood, snake tongues have fascinated naturalists for centuries.
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Two tongue tips are better than one – an evolutionary biologist explains why snakes have forked tongues.
Gunggamarandu maunala is the first Australian croc discovered from a group called the tomistomines. And its prehistoric presence in modern-day Queensland means there could be more discoveries to come.