The evolutionary history of the mock viper, a mildly venomous, widely distributed Asian snake that mimics highly venomous vipers for self-defense, has been solved. The mock viper represents a ...

“Mirasaura teaches us that a feather is only one of the many wondrous things that reptiles evolved to grow out of their skin,” wrote Yale University evolutionary biologist Richard Prum in an essay ...

In a study of fossils, a research team led by evolutionary biologist and Johns Hopkins Medicine assistant professor Matteo Fabbri suggests that a group of giant reptiles alive up to 220 million years ...

WASHINGTON (AP) — Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal, dated to around 350 million years ago. The discovery suggests that after the ...

Following careful study of a prehistoric skull of a new species unearthed in Madagascar, Azendohsaurus madagaskarensis, it turns out Azendohsaurus is not an early dinosaur as long assumed, but rather ...

This evolutionary tree illustrates the remarkable transformation of pterosaur hands as they adapted from a climbing lifestyle to one suited for terrestrial movement. Early, long-tailed pterosaurs, ...

Lizards and snakes may look very different at first. Lizards have legs, eyelids, and ears that you can see. Snakes, on the ...

Mock vipers not only look like tree-dwelling vipers but also act like them. Intriguingly, they have a fake ‘fang’ in the front of their mouth, which befools a predator into thinking that they possess ...