A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Challenging a 75-year-old notion about how and when reptiles evolved during the past 300 million-plus years involves a lot of camerawork, loads of CT scanning, and, most of all, thousands of miles of ...

A digital reconstruction of a million-year-old skull suggests humans may have diverged from our ancient ancestors 400,000 years earlier than thought and in Asia, not Africa, a study found. The ...

New discoveries of fossil clawed footprints from Australia, published in Nature, push the origin of reptiles back in time by at least 35 million years and change the entire timeline for the origin of ...

Scientists working in Ethiopia's Afar Region have made discoveries that rewrite our understanding of early human history. For ...

A new study has provided the most detailed timeline of mammal evolution to date. A new study, published today in the journal Nature, has provided the most detailed timeline of mammal evolution to date ...

Scientists have revealed that ancient bones unearthed deep in a quarry date back approximately 773,000 years - and could be a ...

One of the most important steps in the evolution of modern mammals was the development of highly sensitive hearing. The middle ear of mammals, with an eardrum and several small bones, allows us to ...