Other-regarding preferences in a non-human primate: Common marmosets provision food altruistically
Other-regarding preferences in a non-human primate: Common marmosets provision food altruistically
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DOI：
10.1073/pnas.0710310104
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发表时间：
2007-12-11
影响因子：
11.1
通讯作者：
van Schaik, Carel P.
中科院分区：
文献类型：
--
作者：
Burkart, Judith M.;Fehr, Ernst;van Schaik, Carel P.
人类的合作在动物世界中是无与伦比的，它建立在对基因无关的陌生人的福利的利他主义关注之上。然而，人类利他主义的进化根源仍然知之甚少。最近的证据表明，人类和其他灵长类动物之间存在着不连续性，因为黑猩猩个体不会自发地为其他群体成员提供食物，这表明它们缺乏对自身福利的关注。在这里，我们证明了普通的绒猴（Callithrix jacchus）会自发地为非互惠和基因无关的个体提供食物，这表明其他偏好并不是人类所独有的，而且他们的进化并不需要先进的认知能力，如心理理论。因为人类和绒猴是合作育种者和唯一的两个灵长类类群中，这种不请自来的亲社会性已被发现，我们的结论是，这些亲社会倾向可能源于合作育种。
Human cooperation is unparalleled in the animal world and rests on an altruistic concern for the welfare of genetically unrelated strangers. The evolutionary roots of human altruism, however, remain poorly understood. Recent evidence suggests a discontinuity between humans and other primates because individual chimpanzees do not spontaneously provide food to other group members, indicating a lack of concern for their welfare. Here, we demonstrate that common marmoset monkeys (Callithrix jacchus) do spontaneously provide food to nonreciprocating and genetically unrelated individuals, indicating that other-regarding preferences are not unique to humans and that their evolution did not require advanced cognitive abilities such as theory of mind. Because humans and marmosets are cooperative breeders and the only two primate taxa in which such unsolicited prosociality has been found, we conclude that these prosocial predispositions may emanate from cooperative breeding.