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In the Driver's Seat: Sex Motivation
03:20

In the Driver's Seat: Sex Motivation

Although men and women are motivated to be sexually desirably, the biological urge for sex differs from motives such as thirst and hunger. Beginning in adolescence, sex motivates both men and women but in different ways in terms of their response pa...

Codes of Life: Evolutionary Psychology and Sexual Attitudes
02:58

Codes of Life: Evolutionary Psychology and Sexual Attitudes

Although men and women differ in their attitudes toward casual sex, evolutionary psychologists point out the appeal of pairing to extend one's genetic lineage. What do men and women find attractive in the opposite sex? In a survey of over 10,000...