Evolution and the psychology of intergroup conflict: the male warrior hypothesis.

Cross-Cultural Sex Differences in Post-Conflict Affiliation following Sports Matches

The nature of ancestral human social structure and the circumstances in which men or women tend to be more cooperative are subjects of intense debate. The male warrior hypothesis proposes that success in intergroup contests has been vital in human evolution and that men therefore must engage in maximally effective intragroup cooperation [1-3]. Post-conflict affiliation between opponents is furt...

The Male-Warrior Hypothesis

Evolutionary scientists argue that human cooperation is the product of a long history of competition among rival groups. There are various reasons to believe that this logic applies particularly to men. In three experiments, using a step-level public-goods task, we found that men contributed more to their group if their group was competing with other groups than if there was no intergroup compe...

SEX DIFFERENCES IN INTERGROUP AGGRESSION 1 The Male Warrior Hypothesis: Sex Differences in Intergroup Aggression PLEASE DO NOT CITE OR CIRCULATE WITHOUT PERMISSION FROM THE AUTHORS

Gender differences in cooperation and competition: the male-warrior hypothesis.

Evolutionary scientists argue that human cooperation is the product of a long history of competition among rival groups. There are various reasons to believe that this logic applies particularly to men. In three experiments, using a step-level public-goods task, we found that men contributed more to their group if their group was competing with other groups than if there was no intergroup compe...

Prejudice at the nexus of race and gender: an outgroup male target hypothesis.

Adopting an evolutionary approach to the psychology of race bias, we posit that intergroup conflict perpetrated by male aggressors throughout human evolutionary history has shaped the psychology of modern forms of intergroup bias and that this psychology reflects the unique adaptive problems that differ between men and women in coping with male aggressors from groups other than one's own. Here ...