Evidence from Kenya shows that key stone tools in the development of early humans were made by transporting materials over long distances 600,000 years earlier than previously thought.
An array of stone tools known collectively as the Oldowan toolkit were used by human ancestors to crush plant material and butcher large carcasses like those of hippopotamuses.
An Oldowan flake that was found alongside a hippopotamus shoulder bone at a hippo butchery site excavated in Nyayanga. Credit: T.W. Plummer, Homa Peninsula Paleoanthropology Project.
