A tiny, lizardlike carnivore that skittered across swampy ground roughly 300 million years ago helped set the stage for some of the largest plant eaters the planet has ever seen. Its story is a ...

At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched equid. Here’s why.

The evolution of animal visual systems and their associated photoreceptor genes represents a vibrant field of study that bridges molecular biology, ecology and neurophysiology. At the core of these ...

Hunting is considered critical to human evolution by many researchers who believe that several characteristics that distinguish humans from our closest living relatives, the apes, may have partly ...

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 ...

An international team of scientists has uncovered a fascinating piece of the evolutionary puzzle: how the ventral nerve cord, a key component of the central nervous system, evolved in ecdysozoan ...