Palaeontologists have got a clearer picture of where turtles fit in the animal kingdom, thanks to analysis of a southern ...

An ancient reptile once thought to be an early turtle ancestor actually belonged to an entirely different group.

“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 ...

The Late Triassic was full of animals that look almost familiar, right up until you place them on the evolutionary tree. One ...

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 ...

Learn how a 260-million-year-old Permian reptile, once thought to explain turtle evolution, turned out to belong to a different lineage, reshaping the story of turtle origins in the Triassic Period.

"I'm stunned." says Per Ahlberg of Uppsala University, who coordinated the study; "A single track-bearing slab, which one person can lift, calls into question everything we thought we knew about when ...

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 ...

Lizard bone armor evolved at least 13 separate times over 320 million years, and monitor lizards even re-grew it after losing ...