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Article: Ancestral cut-ups.(evidence of stone-cuts on fossilized man)(Brief Article)
- Article from:
- Science News
- Article date:
- May 15, 1999
- Author:
CopyrightCOPYRIGHT 1999 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Microscopic analysis of a 1.4-million-to-2.4-million-year-old Homo upper jaw has yielded the earliest evidence of human ancestors cutting one another apart with stone implements much as they butchered animals.
The fossil jaw, previously found in South Africa's Sterkfontein cave, bears several incisions made by sharpened stone tools, reports Travis R. Pickering of the University of Wisconsin-Madison. The position and arrangement of the cuts suggest that a facial muscle was sliced off in order to remove the lower jaw from the rest of the skull, Pickering says. A wide range of butchered animals display comparable incisions on their jaws, he and his coworkers assert.
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