Discovery pushes stone-tool use by early humans back 800,000 years (page 4)
Fossilized bones from two ancient animals in Ethiopia show signs of human butchering, pushing back the earliest known evidence for the use of stone tools by nearly a million years, according to researchers. The bones appear to have been butchered about 3.4 million years ago, and are the first evidence of the use of stone tools for meat consumption by Australopithecus afarensis, the species best known for the fossil called "Lucy," Zeresenay Alemseged, Curator of Anthropology at the California Academy of Sciences, told the Associated Press (AP). Alemseged led an international team of scientists who discovered the fossilized bones while working in the Afar Region of Ethiopia. The researchers said the fossilized bones showed unambiguous signs 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. "This discovery dramatically shifts the known timeframe of a game-changing behavior for our ancestors," Al
Discovery pushes stone-tool use by early humans back 800,000 years
Two Arizona State University researchers conducting zooarchaeological and archaeometric analyses of four fossilized animal bone fragments found by the Dikika Research Project in northeastern ...
Thu 12 Aug 10 from Science Blog
Animal bone markings show evidence that 'Lucy' species used stone tools, ate meat, Thu 12 Aug 10 from e! Science News
Scientists discover oldest evidence of human stone tool use and meat-eating
New finds from Dikika, Ethiopia, push back the first stone tool use and meat-consumption by almost one million years and provide the first evidence that these behaviors can be attributed to ...
Thu 12 Aug 10 from Eurekalert
Human Ancestors Used Stone Tools Million Years Earlier
Fossilized bones from two ancient animals in Ethiopia show signs of human butchering, pushing back the earliest known evidence for the use of stone tools by nearly a million years, according ...
Thu 12 Aug 10 from RedOrbit
`Lucy' species used stone tools, fossil study says
Two ancient animal bones from Ethiopia show signs of butchering by human ancestors, moving back the earliest evidence for the use of stone tools by about 800,000 years, researchers say.
Thu 12 Aug 10 from Examiner
Featured - Oldest evidence of stone tool use and meat-eating among humans discovered
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 has discovered evidence that human ...
Wed 11 Aug 10 from Labspaces.net
Scientists discover oldest evidence of stone tool use and meat-eating among human ancestors, Wed 11 Aug 10 from e! Science News
Oldest evidence of stone tool use and meat-eating among human ancestors discovered: Lucy's species butchered meat
Scientists have discovered evidence that human ancestors were using stone tools and consuming meat from large mammals nearly a million years earlier than previously documented. Two fossilized ...
Wed 11 Aug 10 from ScienceDaily
Have Tool, Will Evolve
A Bay Area researcher found evidence that an ancient human ancestor was using stone tools nearly a million years earlier than previously documented.
Wed 11 Aug 10 from QUEST Community Science Blog
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