Tracks found in early Carboniferous-period rocks in southeast Australia appear to be from an amniote, most likely a reptile.

A new discovery is rewriting the history of evolution by millions of years - The emergence of the first land-dwelling animals ...

The ancient footprints from Australia were found on a slab of sandstone recovered near Melbourne and show reptile-like feet ...

One of the most impactful stories in evolution is getting a rewrite, thanks to the exciting discovery of the earliest known ...

New fossilized tracks made by an ancient reptile indicate that these animals evolved tens of millions of years sooner than ...

Model vertebrates are extensively studied non-human vertebrates (species with a notochord, or vertebral column) chosen for the ease of investigating particular biological phenomena in areas such ...

This story appears in the October 2017 issue of National Geographic magazine. From scales to feathers to fur, vertebrates clothe themselves in a dazzling variety of textures and hues. But ...

A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.