Some 2.5 million years ago, early humans survived on a paltry diet of plants. As the human brain expanded, however, it required more substantial nourishment — namely fat and meat — to sustain it. This drove prehistoric man, who lacked the requisite claws and sharp teeth of carnivores, to develop the skills and tools necessary to hunt animals and butcher fat and meat from large carcasses.
Among elephant remains some 500,000 years old at a Lower Paleolithic site in Revadim, Israel, Prof. Ran Barkai and his graduate students Natasha Solodenko and Andrea Zupanchich of Tel Aviv University’s Department of Archaeology and Ancient Near Eastern Cultures recently analyzed “handaxes” and “scrapers,” universally shaped and sized prehistoric stone tools, replete with animal residue.
The research, published recently in PLOS ONE, represents the first scientifically verified direct evidence for the precise use of Paleolithic stone tools: to process animal carcasses and hides. More here Prehistoric stone tools bear 500,000-year-old animal residue