@misc{cogprints173,
          volume = {17},
          number = {4},
           title = {Hominids, coalitions, and weapons; not vehicles},
          author = {Jim Moore},
            year = {1994},
           pages = {632},
         journal = {Behavioral and Brain Sciences},
        keywords = {hominid, violence, cooperation, weapon, group selection},
             url = {http://cogprints.org/173/},
        abstract = {Pace Wilson \& Sober, group selection has not won over biology. However, the combination of fission/fusion organization (favoring coalition formation and relatively complex tactical behavior) with weapons (which in conjunction with group and/or ambush attacks greatly reduce the costs to actors of lethal inter- and intragroup aggression) create circumstances which may well have favored group selection in hominid evolution.}
}

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