小橋 昭彦 2006年3月6日

BEHAVIOR: Who Are More Helpful, Humans or Chimpanzees? — Silk 311 (5765): 1248 — Science
Humans, including infants, are more willing than closely-related chimpanzees to cooperate and behave altruistically and cooperatively, probably in part accounting for their evolutionary success.
http://email.eva.mpg.de/~warneken/publications.htm

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