Listen to more stories on the Noa app. Eons ago, long before T. rex or any other large multicellular life roamed the planet, life on Earth got stuck. After inventing single-celled organisms and ...

When animal life exploded in the oceans more than 500 million years ago, it changed the face of the planet. Now it seems the effects of that burst of evolution reached thousands of kilometres into ...

A new study examined how bivalves -- the group that includes clams, mussels, scallops, and oysters -- evolved among many others in the period of rapid evolution known as the Cambrian Explosion. The ...

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.

A groundbreaking study suggests that the famous Cambrian explosion—the dramatic burst of diverse animal life—might have actually started millions of years earlier than we thought. By analyzing ancient ...

Something unique does seem to have taken place during this time when so many animal groups first appeared, but it's not an open-and-shut case. When you purchase through links on our site, we may earn ...

The history of life on Earth is not a peaceful one. Rather than a constant upward trajectory of evolution, it’s been billions of years of boom-and-bust cycles – first an explosion of life, and then a ...

An illustration of the taco-shaped Odaraia, which researchers say likely swam upside-down and trapped prey in its spine-covered legs. Danielle Dufault, Royal Ontario Museum Around 540 million years ...