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Fisherian runaway: Difference between revisions
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==Humans== | ==Humans== | ||
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]],<ref>https://doi.org/10.1016/j.evolhumbehav.2010.02.005</ref> 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> | ||
Since men have only [[Bateman's principle|half as often]] as women, it implies only the most dominant men were substantially involved in selecting women's secondary sexual characteristics. Conversely, | |||
Men are of course ornamented because ''all'' women are choosy. | |||
==Explanation== | ==Explanation== | ||