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

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

A study out Thursday in Science argues that Neanderthal men and human women were particularly inclined to mate, a sexual ...

The findings may reveal new insights into early human mating preferences ...

Long ago, Neanderthals and modern humans interbred. But among Neanderthals, their modern human blood came mostly from their female ancestors, and a new genetic study finds this was likely due to their ...

New research suggests Neanderthals didn't face a sudden extinction but were gradually absorbed into the growing human population. A mathematical model indicates repeated, small-scale human migrations ...

Learn about a new mathematical model that suggests Neanderthals never went extinct and, instead, became modern humans.