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

Ancient rocks in Sweden are acting like a “rock clock,” helping scientists finally pin down when major Cambrian climate changes happened.

Researchers have found the oldest clue yet of animal life, dating back at least 100 million years before the famous Cambrian explosion of animal fossils. Researchers at the University of California, ...

Geologists have solved a puzzle found in rocks half a billion years old. Some of the most important fossil beds in the world are the Burgess Shales in the Canadian Rockies. Once an ancient sea bed, ...

The biggest, scariest predator of the ancient Cambrian oceans just got a lot more menacing: Researchers have found a pair of fossilized eyes that show the beast had excellent vision. "The animal ...

MIT geochemists offer compelling evidence that ancient sea sponges were Earth's first animals, emerging over 541 million years ago. By analysing chemical fossils in rocks, researchers identified ...

June 1 (UPI) --The mass of fossils found in Canada's Burgess Shale deposit are thought to exhibit the diversity of life that sprang forth during the Cambrian explosion 505 million years ago. New ...

It may not be obvious, but the creature on the right (Yicaris dianensis) is a big deal. Not in size; at its largest, it appears that Yicaris was only about a millimeter long. Rather, its location ...

The oldest fossil crustaceans ever found are helping to prove that the evolutionary explosion of animals was not so explosive after all. The tiny, half-millimetre-long fossils were found in England ...

The biggest, scariest predator of the ancient Cambrian oceans just got a lot more menacing: Researchers have found a pair of fossilized eyes that show the beast had excellent vision. "The animal ...