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Chimpanzee nutcracking anvil, hammerstone, and nuts

Chimpanzees in Guinea used this stone anvil and hammerstone to crack open oil palm nuts, an energy-rich food. Nut cracking is one of the most sophisticated examples of chimpanzee tool use.

Chimpanzee stone anvil, hammerstone with palm nuts, ant-dipping tool, and spear
Image Credit: Chip Clark, Smithsonian Institution
Chimpanzee nutcracking anvil, hammerstone, and nuts
Exhibit Item
Date of discovery:
Discovered by:
Species:
Site: Bossou, Guinea
Page last updated: June 11, 2018