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Fisherian runaway: Difference between revisions
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== Humans == | == Humans == | ||
[[File:1MnqnOm.jpg|400px|thumb|right|A morph of [[eggman]]. The narrow preference for ornamentation in shape of [[few millimeters of bone|few millimeters]] of bone, cartilage and hairline could have evolved based on aesthetic sexual selection, but may also have been strengthened by feedback loops in sexual selection.]] | [[File:1MnqnOm.jpg|400px|thumb|right|A morph of [[eggman]]. The narrow preference for ornamentation in shape of [[few millimeters of bone|few millimeters]] of bone, cartilage and hairline could have evolved based on aesthetic sexual selection, but may also have been strengthened by feedback loops in sexual selection.]] | ||
Even though human females are more choosy in accordance to [[Bateman's principle]], both sexes are ornamented. Women have [[Boobs|permanently swollen breasts]], an hour glass shaped body etc., men have a V-shaped upper body, more toned muscles, beards, very large penises compared to other great apes, and [[:Category:Aesthetics|various other features]]. Both sexes have clearly defined [[Hairline|hairlines]] and very clear skin. None of these features | Even though human females are more choosy in accordance to [[Bateman's principle]], both sexes are ornamented. Women have [[Boobs|permanently swollen breasts]], an hour glass shaped body etc., men have a V-shaped upper body, more toned muscles, beards, very large penises compared to other great apes, and [[:Category:Aesthetics|various other features]].<ref>https://www.sciencedirect.com/science/article/abs/pii/S1090513810000279</ref> Both sexes have clearly defined [[Hairline|hairlines]] and very clear skin. None of these features have survival value besides being good looking, so they're likely sexually selected, likely mostly by aesthetic selection common to many higher animals,<ref>https://www.apa.org/monitor/oct06/pretty</ref> and possibly by feedback loops like Fisherian runaway and sensory bias,<ref>Fuller, R. C., Houle, D., & Travis, J. 2005. ''Sensory Bias as an Explanation for the Evolution of Mate Preferences.'' [[https://www.jstor.org/stable/10.1086/444443 Abstract]]</ref> leading to exaggeration and strengthened sexual dimorphism.<ref>https://www.sciencedirect.com/science/article/abs/pii/S1090513810000279</ref> Though dominant and masculine features like large beards and a deep, intimidating voice may also serve the intimidation of other males.<ref>https://www.sciencedirect.com/science/article/abs/pii/S1090513810000279</ref><ref>http://larspenke.eu/pdfs/Kordsmeyer_et_al_2018_-_Intra-_vs_intersexual_selection_on_human_males.pdf</ref> | ||
Women are likely mainly ornamented because throughout history, [[Chad|alpha males]] could freely choose among many women, could produce a large number of children and evidently repeatedly chose women with pronounced secondary sexual characteristics such as [[tits|big boobs]] and [[Butt|booties]].<ref>https://doi.org/10.1016/j.evolhumbehav.2010.02.005</ref> Men are of course ornamented because ''all'' women are choosy. | Women are likely mainly ornamented because throughout history, [[Chad|alpha males]] could freely choose among many women, could produce a large number of children and evidently repeatedly chose women with pronounced secondary sexual characteristics such as [[tits|big boobs]] and [[Butt|booties]].<ref>https://doi.org/10.1016/j.evolhumbehav.2010.02.005</ref> Men are of course ornamented because ''all'' women are choosy. | ||