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 ...

WASHINGTON — Scientists in Australia have identified the oldest known fossil footprints of a reptilelike animal, dated to around 350 million years ago. The discovery suggests that after the first ...

Is it possible that feathers weren’t the first extravagant skin appendages in reptiles? The recent discovery of Mirasaura grauvogeli’s remarkable dorsal crest has upended long-held assumptions about ...

Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal, dated to around 350 million years ago. Subscribe to read this story ad-free Get unlimited access to ...

Viviparity, the live-bearing mode of reproduction, has evolved independently in several vertebrate lineages, including squamate reptiles and seahorses. In reptiles, evolutionary transitions from ...

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 ...

This piece first appeared in the Front Matter section of the Proceedings of the National Academy of Sciences. A small but fierce jawbone sits in Argentina’s natural science museum in Buenos Aires. Six ...

A fossil of Mirasaura grauvogeli that shows its bird-like skull and crest along its back. Credit: Stephan Spiekman Paleontologists have identified an ancient reptile with a towering crest made not of ...