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Femininity in the female face and voice provide cues to female reproductive hormones and reproductive potential. [105] Males tend to have lower pitched voices than females, likely due to male intrasexual competition, [ 106 ] but some evidence suggests that high female voice pitch may also be favored by male mate choice and function in ...
However, some research with nonhuman primates suggests a role for androgens in female sexual behaviour. Adrenalectomized female rhesus monkeys displayed diminished female sexual receptivity. [4] Later studies revealed this diminished sexual receptivity was specific to the elimination of androgens that can be converted to estrogen. [5]
Female humans and other primates find faces with high levels of symmetry and masculinity more attractive, especially at high fertility. Having symmetrical features may indicate that an individual possesses high-quality genes related to health, and that they developed in a stable environment with little disease or trauma. [ 38 ]
The study said that more feminine men tended to prefer relatively older men than themselves and more masculine men tended to prefer relatively younger men than themselves. [ 61 ] Cross-cultural data shows that the reproductive success of women is tied to their youth and physical attractiveness, [ 62 ] such as the pre-industrial Sami where the ...
[1] The list of the four activities appears to have been first introduced in the late 1950s and early 1960s in articles by psychologist Karl H. Pribram , with the fourth entry in the list being known by terms such as "sex" [ 2 ] : 11, 13 or occasionally "fornicating", [ 3 ] : 155 although he himself did not use the term "four Fs".
Men and women have developed separate sexual strategies that are used for both short-term and long-term mate gain. Psychological adaptations such as mate guarding and sexual jealousy, and biological adaptations such as men’s testes size indicate that polygamy was present in evolutionary history, [35] [36] [18] and
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The Descent of Man, and Selection in Relation to Sex is a book by English naturalist Charles Darwin, first published in 1871, which applies evolutionary theory to human evolution, and details his theory of sexual selection, a form of biological adaptation distinct from, yet interconnected with, natural selection.