New research reveals that ancient interbreeding between humans and Neanderthals shaped our modern human DNA - especially on the X chromosome.

When closely related species mate, their offspring sometimes survive but cannot reproduce. This pattern often affects males ...

FILE: Reconstructions of a Neanderthal man, left, and woman at the Neanderthal museum in Mettmann, Germany, March 2009 ...

Learn how sex-biased interbreeding between Neanderthals and modern humans explains why Neanderthal DNA is largely missing ...

But the study, published Thursday in the journal Science, shows “that whenever Neanderthals and modern humans have mated, ...

Neanderthals, the closest cousins of modern humans, lived in parts of Europe and Asia until their extinction some 30,000 years ago. Genetic studies are revealing ever more about the links between ...

Loss of the Y chromosome in aging men is widespread and increasingly linked to serious diseases, challenging assumptions that ...

When ancient humans interbred, new research shows that the pairings were predominantly male Neanderthals and female Homo ...

Neanderthals, the closest cousins of modern humans, lived in parts of Europe and Asia until their extinction some 30,000 years ago. Genetic studies are revealing ever more about the links between ...

The human genetic blueprint is deceptively simple. Our genes are tightly wound into 46 X-shaped structures called chromosomes. Crafted by evolution, they carry DNA and replicate when cells divide, ...