But some people want a boy or a girl so badly that they are willing to pay thousands of dollars — sometimes even mortgaging their house — in order to choose the sex of their baby via embryo selection following IVF. Show 25 25 50 All. Those opposed to sex selection argue that it plays on gender stereotypes that children may not be able to live up to, and that their autonomy could be impacted as a result. The theory of sexual selection has been used to explain a number of human anatomical features. For almost all of us, the sex of our children is a matter of chance. It sends a message to society that the sexes are not interchangeable.
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Sexual selection in humans
In that view, many human artifacts could be considered subject to sexual selection as part of the extended phenotype, for instance clothing that enhances sexually selected traits. For instance, parents who already have one or more boys and now want a girl, or vice versa. University of California Press. Human skin pigmentation as an adaptation to UV radiation". Men are generally hairier than women, and Darwin was of the opinion that hairlessness was related to sexual selection; however, several other explanations have been advanced to explain human hairlessness , a leading one is loss of body hair to facilitate sweating. Joseph Carroll Denis Dutton.
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Parents don’t need sex selection to get the gender they want
According to studies in western countries, the reasons why parents want to select the sex of their child centre around desiring a certain kind of parenting experience. The breasts of primates are flat, yet are able to produce sufficient milk for feeding their young. It is not implausible that, with natural selection refining their diagnostic skills, females could glean all sorts of clues about a male's health, and the robustness of his ability to cope with stress, from the tone and bearing of his penis. One such example is a preference for males whose facial structure indicates certain hormonal ratios, such as testosterone - cortisol levels sex and stress hormones. Miller is critical of theories that imply that human culture arose as accidents or by-products of human evolution.
Description:In a study measuring female attraction to males with varying levels of masculinity , it was established that women had a general masculinity preferences for men's voices, and that the preference for masculinity was greater in the fertile phase of the menstrual cycle than in the non-fertile phase. Parents could be depriving themselves and their children of enjoying a fulfilling relationship. It is not implausible that, with natural selection refining their diagnostic skills, females could glean all sorts of clues about a male's health, and the robustness of his ability to cope with stress, from the tone and bearing of his penis. University of California Press. Chimpanzee—human Gorilla—human Orangutan—human Gibbon—human.