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Evolutionary Explanations of
Human Aggression
The evolution of Jealousy
Aggression as an adaptive function for men- Infidelity and aggression

Daly & Wilson 1988- aggression is caused by strategies (male retention strategies) to deal with
adultery...a man doesn't want to waste time and resources bringing up someone else's child and…

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Bus and Shakleford 1997- men who suspected wives might cheat in the next year, exacted greater
punishments for any suspected infidelity, than men who did not. Consistent with evolutionary
psychology that suggest mate retention strategies are evoked when a threat is imminent.

Research in this area can warn women and…

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Murder quite costly to pursue (maladaptive) as it is particularly dangerous for the killer, as fear of
retribution. Selection instead favours deceptive responses such as concealment of homicidal intent
and defences.

If aggression is purely an adaptive response then everyone should be the same but why then are


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