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6 Cards in this Set
- Front
- Back
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Adaptive costs and benefits of ST mating for men
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costs:
- STDs - womanizer rep bad for game - lower chance that kids survive - retaliation by wife if married benefits - increase in offspring |
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Comparative research on testicle size
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- large testicles evolve bc of sperm competition
- human size relative to body weight is greater than gorillas/orangutans, but smaller than chimps (correlates w/ amt. of competition) |
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Variations in sperm production and insemination
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- Men’s sperm count goes up dramatically (regardless of last ejaculation) with the increasing amount of time the couple has been apart since the last time they’ve had sex.
- purpose is to displace other possible ejaculate |
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The “Closing Time Phenomenon”
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a context-specific lowering of standards as the likelihood of sexual accessibility starts to drop.
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Evidence for ST mating in women
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- women must have historically done it, or else men wouldn't have developed desire for variety
- women more likely to have affairs when ovulating, and more likely to orgasm (more likely to get preg) - women in all societies have affairs. |
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Adaptive costs and benefits of ST mating for women
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benefits:
- resources - better genes for son - mate switching - practice/evaluate for LT - manipulate (commitment, revenge) costs: - promiscuous rep can hurt game - violence/date rape - pregnancy w/o husband - losing husband - STDs |
