6 found
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  1.  31
    Intergroup Aggression in Chimpanzees and War in Nomadic Hunter-Gatherers.Richard W. Wrangham & Luke Glowacki - 2012 - Human Nature 23 (1):5-29.
    Chimpanzee and hunter-gatherer intergroup aggression differ in important ways, including humans having the ability to form peaceful relationships and alliances among groups. This paper nevertheless evaluates the hypothesis that intergroup aggression evolved according to the same functional principles in the two species—selection favoring a tendency to kill members of neighboring groups when killing could be carried out safely. According to this idea chimpanzees and humans are equally risk-averse when fighting. When self-sacrificial war practices are found in humans, therefore, they result (...)
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  2.  15
    The Role of Rewards in Motivating Participation in Simple Warfare.Luke Glowacki & Richard W. Wrangham - 2013 - Human Nature 24 (4):444-460.
    In the absence of explicit punitive sanctions, why do individuals voluntarily participate in intergroup warfare when doing so incurs a mortality risk? Here we consider the motivation of individuals for participating in warfare. We hypothesize that in addition to other considerations, individuals are incentivized by the possibility of rewards. We test a prediction of this “cultural rewards war-risk hypothesis” with ethnographic literature on warfare in small-scale societies. We find that a greater number of benefits from warfare is associated with a (...)
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  3. Self-Interested Agents Create, Maintain, and Modify Group-Functional Culture.Manvir Singh, Luke Glowacki & Richard W. Wrangham - 2016 - Behavioral and Brain Sciences 39.
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  4.  25
    The Evolution of Sexuality in Chimpanzees and Bonobos.Richard W. Wrangham - 1993 - Human Nature 4 (1):47-79.
    The evolution of nonconceptive sexuality in bonobos and chimpanzees is discussed from a functional perspective. Bonobos and chimpanzees have three functions of sexual activity in common (paternity confusion, practice sex, and exchange for favors), but only bonobos use sex purely for communication about social relationships. Bonobo hypersexuality appears closely linked to the evolution of female-female alliances. I suggest that these alliances were made possible by relaxed feeding competition, that they were favored through their effect on reducing sexual coercion, and that (...)
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  5.  5
    Male More Than Female Infants Imitate Propulsive Motion.Joyce F. Benenson, Robert Tennyson & Richard W. Wrangham - 2011 - Cognition 121 (2):262-267.
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  6.  19
    Human Males Appear More Prepared Than Females to Resolve Conflicts with Same-Sex Peers.Joyce F. Benenson, Melissa N. Kuhn, Patrick J. Ryan, Anthony J. Ferranti, Rose Blondin, Michael Shea, Chalice Charpentier, Melissa Emery Thompson & Richard W. Wrangham - 2014 - Human Nature 25 (2):251-268.
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