Byrne Richard W
Scottish Primate Research Group, and Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St Andrews, Fife KY16 9JP, Scotland.
Curr Biol. 2007 Mar 6;17(5):R164-5. doi: 10.1016/j.cub.2007.01.004.
Chimpanzees regularly hunt mammals, but use only their hands and teeth: for the first time, chimpanzees have now been found to make tools in order to spear mammalian prey.
黑猩猩经常捕食哺乳动物，但只使用它们的手和牙齿：现在首次发现，黑猩猩会制造工具来刺杀哺乳动物猎物。
