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Contact: Hedwige Boesch
hboesch@eva.mpg.de
0049-341-355-0250
Max-Planck-Gesellschaft
Caption: A typical stone hammer showing deep wear used by chimpanzees in the Tai forest to crack Panda nuts.
Credit: Max Planck Institute of Evolutionary Anthropology
Usage Restrictions: None
Related news release: The Chimpanzee Stone Age
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