User:Thesharonyu/sandbox

The male warrior hypothesis 

Research has suggested that there is an universal tendency for men to engage in intergroup conflict more so than women, and the manifestation of this theory comes from evolutionary and social psychological roots. At the core of it all, there is an evolutionary basis in the way people compartmentalize the people they come in contact with upon first perception. Often it is based on arbitrary criterion and this phenomenon is also universal and documented widely in both Western and non-Western cultures. These perceptions help humans decide whether or not people they come in contact with are part of their “group,” or are akin to them. It’s argued that in-group bias is a direct result of humans needing to make sense of the physical world around them and needing to stay in groups for survival and reproductive benefits. 

There is a theory that evolutionary males have been more inclined to act in aggression through groups towards other groups in order to protect reproductive resources, and it is because men are psychological more able to plan and initiate aggressions towards other groups.