%A Jim Moore %J Behavioral and Brain Sciences %T Hominids, coalitions, and weapons; not vehicles %X 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. %N 4 %K hominid, violence, cooperation, weapon, group selection %P 632 %V 17 %D 1994 %L cogprints173