In a nutshell All modern humans share DNA from two ancient populations that split 1.5 million years ago and reunited through ...

We've long assumed our species evolved from a tidy, single stream of ancestors. But life on Earth is never quite so ...

Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long before modern humans spread across the globe.

Ultraviolet (UV) radiation is known to cause DNA damage, and while that damage may accumulate and eventually lead to diseases ...