Add Yahoo as a preferred source to see more of our stories on Google. New research finds chemical fossils from sponges in rocks over 541 million years old, suggesting animals emerged earlier than once ...

Fossils of a tiny sea creature that lived 525 million years ago have preserved something paleontologists rarely find: a brain. The specimen, a worm-like animal called Cardiodictyon catenulum recovered ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers uncovered the internal body parts of Cambrian fauna, such as these bits of sternums from crustaceans. - Mussini et al.

A treasure trove of exceptionally preserved early animals from more than half a billion years ago has been discovered in the Grand Canyon, one of the natural world's most iconic sites. Subscribe to ...

This animation created for Evolution: "Great Transformations" depicts creatures whose fossils were found at the Burgess Shale. As alien as these creatures seem, they are also surprisingly familiar.

This early animal behavior changes how we see success in evolution. It wasn’t just about being good on your own; it was about being smart together. These Cambrian groups were the first social networks ...

A team of scientists digging up some of the Earth’s oldest rocks has uncovered new chemical evidence that Earth’s first animals were likely ancestors of the modern sea sponge. The discovery relies on ...

(CNN) — Paleontologists have discovered remarkable fossils in the Grand Canyon that reveal fresh details about the emergence of complex life half a billion years ago. The newfound remains of fauna ...