erectus — a small-brained predecessor to species including modern humans and Neanderthals — replaced H. habilis in the region, somewhere between 1.8 and 1.5 million years ago.

The team says that humans have a third set of teeth available as buds, ready to grow as needed. A sliver of what makes sharks so intriguing comes with their ability to regrow teeth. And while a ...

Humans lived under the leafy canopy of a West African rainforest by at least 150,000 years ago. Previously, the oldest secure evidence for humans living in African rainforests dated to about ...

And when they searched through a library of genetic information from thousands of humans, they discovered that the same gene was associated with a higher body mass in people, too. Before this ...