O both male and female offspring of masculine males

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o both male and female offspring of masculine males end up being masculine which end up being less attractive Are there times/situations when parental investment is preferred to good genes? Early follicular phase: Low estrogen and progesterone Peak fertility (the peak) is during the follicular phase, this is when you have high estrogen o Females prefer more masculine phases here (want good genes) Luteal phase: body prepared for pregnancy, progesterone has increased a lot & body undergoes physiological changes to prepare for an egg o when no baby, the uterine lining sheds, and progesterone decreases o females prefer more feminine looking faces (want increased parental investment) Other animal species only mate during the peak phase Humans mate during all the cycle phases Menstrual cycle alters attraction to masculinity Long-term= committed, marriage, short-term= one night stand Found no diff in long term relationship context for people’s preference for masculine faces
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BUT, Women preferred masculine faces more when they were more fertile (high estrogen) & looking for short term relationships..why? good genes. The replication crisis in psychology Populations with no birth control also don’t have many menstrual cycles…why? Cause they are having babies Found there is no preference for masculine faces during the menstruation cycle There were singers in church who were castrated before puberty happened He is the last singing castrati Allessandro moreschi: This is the sound of a males voice who has castrated (sound like a female) Castrated
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  • Fall '08
  •  Marion fisher

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