Reciprocal food sharing in the vampire bat

  title={Reciprocal food sharing in the vampire bat},
  author={G. Wilkinson},
  • G. Wilkinson
  • Published 1984
  • Biology
  • Nature
  • Behavioural reciprocity can be evolutionarily stable1–3. Initial increase in frequency depends, however, on reciprocal altruists interacting predominantly with other reciprocal altruists either by associating within kin groups or by having sufficient memory to recognize and not aid nonreciprocators. Theory thus suggests that reciprocity should evolve more easily among animals which live in kin groups. Data are available separating reciprocity from nepotism only for unrelated nonhuman animals4… CONTINUE READING
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