Lucy's Species May Have Used Stone Tools 3.4 Million Years Ago

The evolutionary stories of the Swiss Army Knife and the Big Mac just got a lot longer. An international team of scientists led by Dr. 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. While working in the Afar Region of Ethiopia, Alemseged's "Dikika Research Project" 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. The bones date to roughly 3.4 million years ago and provide the first evidence that Lucy's species, Australopithecus afarensis, used stone tools and consumed meat. The research is reported in the August 12 issue of the journal Nature.

Lucy's Species May Have Used Stone Tools 3.4 Million Years Ago

Was Lucy a tool user and a meat eater? Quite possibly, argues a new study ...

Thu 12 Aug 10 from Discover Magazine

Butchered bones prove early meat eating

Evidence from ancient bones found in Ethiopia suggest human ancestors were using stone tools to carve meat a million years earlier than previously thought.

Wed 11 Aug 10 from ABC Science

How Lucy's meat-eating made us what we are now

The point in prehistory when our early ancestors first picked up a sharp-edged stone to butcher animals has been pushed much further back in time with the discovery of ancient bones.

Wed 11 Aug 10 from The Independent

Study: Were Lucy's Relatives the Oldest Butchers?

A new discovery may push back the earliest evidence of stone tool use by human ancestors another 800,000 years, to at least 3.2 million years ago

Wed 11 Aug 10 from TIME

New Find Pushes Age of Stone Tools Back A Million Years

The genus Homo is no longer the sole primate lineage known to have used stone tools to consume the meat of large mammals. New research pushes that skill back nearly a million years. Large fossilized ...

Wed 11 Aug 10 from Wired Science

Human ancestors carved meat with stone tools almost a million years earlier than expected

Every time we slice into a steak or cut into some chicken, we're taking ...

Wed 11 Aug 10 from Discover Magazine

Oldest signs of tool-making found

Researchers have unearthed evidence that our ancestors used tools and ate meat 800,000 years earlier than thought.

Wed 11 Aug 10 from BBC News

Lucy's kind used stone tools to butcher animals

African fossils bear 3.4-million-year-old traces of tool-using carnivores.

Wed 11 Aug 10 from ScienceNews

Lucy's Kind Used Stone Tools to Butcher Animals, Fri 13 Aug 10 from U.S. News

Scientists discover oldest evidence of stone tool use and meat-eating among human ancestors

The evolutionary stories of the Swiss Army Knife and the Big Mac just got a lot longer. An international team of scientists led by Dr. Zeresenay Alemseged from the California Academy of Sciences ...

Wed 11 Aug 10 from PhysOrg

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