Bone can heal itself, but not always in the ways we expect. Some animals regrow entire limbs. Others, like humans, can only ...

Doctors weigh in on the six mistakes you may not even know you’re making every day — and how to easily remedy them so you can ...

The tool we've identified is called a Quina scraper. This type of stone tool is well known from archaeological sites in ...

A style of primitive stone tools named for the French site where they were first discovered have shown up half a world away.