At first, the day looks like a classic fossil beach hunt: rough waves, shell layers, cliff falls, and the hope of finding a shark tooth. Then a small fragment changes everything. They identify it as ...

Modern Nautilus and Allonautilus species inhabit deeper waters than their extinct ancestors did over 500 million years ago.

Between 280 and 200 million years ago, a group of animals evolved which would eventually give rise to mammals, including humans: the therapsids. They were first described more than 150 years ago, ...

Scientists utilized 3D X-ray imaging to uncover new details that challenged previous ideas about prehistoric marine life.

Researchers have discovered the oldest known example of a predator-prey “arms race,” based on their study of ancient fossils. This ancient predator-prey relationship took place 517 million years ago ...

In 2000, researchers thought they found the oldest fossil octopus, which lived over 300 million years ago. But it may just be ...