Young girls sexual evolution

Try out PMC Labs and tell us what you think. Learn More. Indirect aggression includes behaviours such as criticizing a competitor's appearance, spreading rumours about a person's sexual behaviour and social exclusion. Human females have a particular proclivity for using indirect aggression, which is typically directed at other females, especially attractive and sexually available females, in the context of intrasexual competition for mates. Indirect aggression is an effective intrasexual competition strategy.
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'Language Gene' More Active in Young Girls Than Boys

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Understanding normal development of adolescent sexuality: A bumpy ride

Try out PMC Labs and tell us what you think. Learn More. During adolescence, major biological as well as psychological developments take place. Development of sexuality is an important bio-psycho-social development, which takes an adult shape during this period.
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Understanding normal development of adolescent sexuality: A bumpy ride

Men are taller on average than women, but that may not be a trait that evolved through selection. One of the most obvious physical differences between men and women are their average sizes. Men are, on the whole, taller. But in a recent paper in Evolutionary Anthropology , Dunsworth showed that the science points another way.
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Sexual selection is a mode of natural selection in which members of one biological sex choose mates of the other sex to mate with intersexual selection , and compete with members of the same sex for access to members of the opposite sex intrasexual selection. These two forms of selection mean that some individuals have greater reproductive success than others within a population , for example because they are more attractive or prefer more attractive partners to produce offspring. Females can have a limited number of offspring and maximize the return on the energy they invest in reproduction. The concept was first articulated by Charles Darwin who wrote of a "second agency" of selection, in which competition between mate candidates could lead to speciation.
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