Loss of the Y chromosome in aging men is widespread and increasingly linked to serious diseases, challenging assumptions that the Y has little biological importance beyond sex determination.

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 ...

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

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

Perhaps human females found Neanderthal males to be high-status providers. Or perhaps Neanderthal society was “patrilocal” — meaning women moved to join the man’s family — while human society was the ...

Neanderthal DNA is not distributed evenly throughout the human genome. Scientists say the explanation may be mating behavior.

Humans and Neanderthals cozied up from time to time when they lived in the same areas tens of thousands of years ago. A new ...

Most people today have a little Neanderthal DNA sprinkled through their genome. Exactly what these interactions looked like is a mystery, but a new study suggests that when our species and ...

Neanderthal males had a tendency to mate with human females, new research suggests.

Should you ever find yourself playing a trivia game on the topic of moths and butterflies, here are a few facts that might ...