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Because women invest greatly in reproduction of offspring, they have developed traits that help improve the chances that each offspring will survive.Men are less concerned with reproduction and are less choosy about mates (Wood & Eagly, 2002).This resulted in sex-specific evolved mechanisms that humans carry with them--these are the causes of sex-differentiated behavior.The two sexes developed different strategies to ensure their survival and reproductive success.
It compares explanations from both theories for each sex difference.
From the evolutionary perspective, human sex differences reflect the pressure of differing physical and social environments between females and males in primeval times.
It is believed that each sex faced different pressures and that the differing reproductive status was the key feature in life at that time.
Evolutionary psychology maintains that sex differences develop biologically as people adapt to changes in the environment.
The main focus in evolutionary psychology is reproduction of future generations.