#Stone tools made by early man mac

вЂњThis find will definitely force us to revise our text books on human evolution, since it pushes the evidence for tool use and meat eating in our family back by nearly a million years,вЂќ he explains. It also led to tool making-a critical step in our evolutionary path that eventually enabled such advanced technologies as airplanes, MRI machines, and iPhones.вЂќДЄlthough the butchered bones may not look like particularly noteworthy fossils to the lay person, Alemseged can hardly contain his excitement when he describes them. вЂњTool use fundamentally altered the way our early ancestors interacted with nature, allowing them to eat new types of food and exploit new territories. вЂњThis discovery dramatically shifts the known timeframe of a game-changing behavior for our ancestors,вЂќ says Alemseged, Curator of Anthropology at the California Academy of Sciences. The research is reported in the August 12 issue of the journal Nature. The bones date to roughly 3.4 million years ago and provide the first evidence that LucyвЂ™s species, Australopithecus afarensis, used stone tools and consumed meat. While working in the Afar Region of Ethiopia, AlemsegedвЂ™s вЂњDikika Research ProjectвЂќ team found fossilized bones bearing unambiguous evidence of stone tool use-cut marks inflicted while carving meat off the bone and percussion marks created while breaking the bones open to extract marrow. Zeresenay Alemseged from the California Academy of Sciences has discovered evidence that human ancestors were using stone tools and consuming meat from large mammals nearly a million years earlier than previously documented. An international team of scientists led by Dr.

#Stone tools made by early man mac

ADDIS ABABA (August 11, 2010) - The evolutionary stories of the Swiss Army Knife and the Big Mac just got a lot longer.