Our species is the last living member of the human family tree. But just 40,000 years ago, Neanderthals walked the Earth, and hundreds of thousands of years before then, our ancestors overlapped with ...

Modern humans, Neanderthals, and other recent relatives on our human family tree evolved bigger brains much more rapidly than earlier species, a new study of human brain evolution has found. The team ...

Scientists say they have solved the mystery of the Burtele foot, a set of 3.4 million-year-old bones found in Ethiopia in 2009. The fossils, along with others unearthed more recently, have now been ...

Add Yahoo as a preferred source to see more of our stories on Google. A group of people hiking in the mountains. There was a moment in human history when our entire existence may have desperately ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. The story of how humans evolved is a long and winding one — ...

Learn how fossils show human ancestors did not grow bigger in a straight line, but split into larger and smaller evolutionary paths. Early relatives such as Australopithecus weighed around 88 pounds ...

WASHINGTON (Reuters) - Jaw and teeth fossils found on the silty clay surface of Ethiopia's Afar region represent a previously unknown member of humankind's family tree that lived 3.3 to 3.5 million ...