PSYCH 1XX3 Lecture Notes - Lecture 2: Parental Investment, David Buss, Cuckold

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How does sexual selection affect mate selection and risk-taking: heritable variants lead to differential reproductive success, in humans, sexual selection drives different strategies to optimize reproductive success. Today, we discuss how these adaptations influence mate selection and risk-taking behaviours. Heritable variants lead to differential reproductive success. The evolution of characteristics not because of survival advantage, but because of mating advantages. Members of the same sex compete with each other, and winners gain mating access to the opposite sex. Members of one sex prefer certain qualities in males. Voice pitch predicts reproductive success in a natural. Male voice pitch is related to attractiveness ratings from females the (cid:498)human peacock tail(cid:499) Deep voice pitch is heritable testosterone almost. Deep voice pitch has a cost testosterone actually weakens the immune system and correlates with lower semen quality fertility population exclusively determines voice pitch: ex.

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