Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

The first systematic, multidisciplinary results to come out of research conducted on the edge of the Serengeti at the rich palaeoanthropological site in the Olduvai Gorge in Tanzania since that ...

WASHINGTON — Early humans were regularly using animal bones to make cutting tools 1.5 million years ago. A newly discovered cache of 27 carved and sharpened bones from elephants and hippos found in ...

Add Yahoo as a preferred source to see more of our stories on Google. Bone artifacts discovered in Tanzania push back the earliest known date of bone tool technology by over a million years. In ...