A collection of bones from Casablanca holds important new clues to the origins of modern humans and Neanderthals.

Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers.

Biologists mapping the human microbiome expected to find new bacteria and viruses, not entities that slip through every ...

The act of kissing may have started long before modern humans existed, a new modeling study suggests. Kissing stretches back roughly 21 million years, to the shared ancestor of humans and other large ...