PSYCH 1XX3 Lecture Notes - Lecture 2: Cuckold, Parental Investment, Semen Quality
17 Jan 2017
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Document Summary
In humans, sexual selection drives different strategies to optimize reproductive success. Today, we discuss how these adaptations influence mate selection and risk-taking behaviours. Sexual selection the evolution of characteristics not because of survival. Intrasexual competition members of the same sex compete with each other, and. Intersexual competition members of one sex prefer certain qualities in mates the winners gain mating access to the opposite sex advantage, but because of mating advantage. Male voice pitch is related to attractiveness ratings from females. Women like men with deeper voices men) voices. Men with deeper voices tend to have more offspring than men with higher. Voice pitch predicts reproductive success in a natural fertility population. Group of people who don"t use birth control (can effect reaction towards: yes! Testosterone almost exclusively determines voice pitch: yes! Testosterone actually weakens the immune system and. Does deep voice pitch have cost? correlates with lower semen quality.
