A 1.6-million-year-old Ethiopian skull blends ancestor and descendant features, rewriting the origin story of Homo erectus.

Rather than leading to the disappearance of males, Y chromosome decline could trigger new sex determining systems . Similar shifts have already occurred in other mammals. The article suggests that ...

In 1758, Swedish biologist Carl Linnaeus gave humans a scientific name: Homo sapiens, which means "wise human" in Latin. Although Linnaeus grouped humans with other apes, it was English biologist ...