Contact: Stephanie Stone
sstone@calacademy.org
415-379-5121
California Academy of Sciences
Caption: These two cutmarks were made about 3.4 million years ago, when an Australopithecus afarensis carved meat off the rib bone of a cow-sized mammal.
Credit: Dikika Research Project, California Academy of Sciences
Usage Restrictions: With credit to the Dikika Research Project, California Academy of Sciences
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