One of the most popular explanations for why menopause evolved in some species is called the grandmother hypothesis. Essentially, older females stop having offspring of their own, and redirect energy ...

Geneticists have found an interesting pattern in how early humans and Neanderthals interbred—and it wasn't balanced.

Most people alive today carry fragments of Neanderthal DNA in their genome. Now scientists are gaining a more intimate ...

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 ...

Fossils unearthed in Ethiopia are reshaping our view of human evolution. Instead of a straight march from ape-like ancestors to modern humans, researchers now see a tangled, branching tree with ...

Evolution has given humans countless unique features, but one body part stands out as an unsolved puzzle: the human chin. While scientists can often trace the development of various organs and ...

Researchers at the University of Maine are theorizing that human beings may be in the midst of a major evolutionary shift—driven not by genes, but by culture. "Human evolution seems to be changing ...