evolutionary explanation Flashcards
how does evolutionary aggression work?
genes mutate to be beneficial, making the being more likely to reproduce and pass said gene(s) onto their offspring
why would aggression have an evolutionary advantage?
-helps fight for resources
-males appear more attractive to females (protect offspring)
why might aggression be an evolutionary disadvantage?
females may not wish to reproduce with an aggressive male as they want someone sensitive that can nurture their offspring
how does jealousy relate to evolutionary aggression?
-an individual fears losing the affections of a mate to another, so a potential threat to the relationship induces aggression
research on the evolutionary explanation
-Sadalla et al 1987 - mate preference is based on survival rather than happiness
-Daly & Wilson 1988 - homicide rates are higher when a mans wife is about to leave/has left
briefly evaluate the evolutionary explanation
-cultural differences in homicide rates of men killing their wives (if it was an evolutionary advantage the rates would be consistent globally)
-difficult to test as much research uses a forced option format, simplifying behaviour
-seems to suggest aggression is excusable and beyond control, which has implications in the legal system, making research socially sensitive