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 ...

A wave of new research is forcing paleontologists to reconsider a basic question about life on Earth: when did the first mass ...

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 ...

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.

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.

GRAND CANYON, AZ — 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 ...

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 ...

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 from the ...