DNA evidence suggests homo sapiens women more often paired with Neanderthal men, helping explain why Neanderthal genes are rare.

A new study in the journal Science reveals that interbreeding between Neanderthals and humans was strongly sex-biased. This social dynamic explains why Neanderthal DNA is missing from our X chromosome ...

Humans today often carry around a small chunk of DNA from Neanderthals, suggesting we interbred with our closest known extinct relatives at some point in our history. So why isn't there more ...

For years, geneticists have wrestled with a curious absence: many modern people carry Neanderthal DNA, yet large stretches of the human X chromosome are almost empty of it. A new study argues that ...