Our faces don’t just distinguish us from other people, but other species as well. Neanderthals bore stout jaws and broad noses, their features jutting forward like cliffs of bone. Chimpanzees, our ...

While closely related, Neanderthals and modern humans split from our last common ancestor between 650,000 and 500,000 years ago and evolved into distinct species. Among other contrasts, Neanderthal ...