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.
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.