Talk:Fisherian runaway: Difference between revisions

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Talk:Fisherian runaway (edit)

Revision as of 01:12, 23 November 2019

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== Humans ==
== Humans ==
[[File:1MnqnOm.jpg|400px|thumb|right|The preference for [[few millimeters of bone|few millimeters of bone, cartilage and hairline]] could come from aesthetic sexual selection, but maybe has been strengthened by feedback loops in sexual selection]]
[[File:1MnqnOm.jpg|400px|thumb|right|The preference for [[few millimeters of bone|few millimeters of bone, cartilage and hairline]] could come from aesthetic sexual selection, but maybe has 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 serve a known biological purpose 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.


Women are mainly ornamented because throughout history, [[Chad|alpha males]] would freely choose among many women, would produce a large number of children and repeatedly chose women with pronounced secondary sexual characteristics such as [[tits|big boobs]] and [[Butt|butts]].  
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 serve a known biological purpose besides being good looking, so they're sexually selected, 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.
 
While it is not proven that feedback loops were involved in shaping human ornament, or just sexual selection without feedback, it is certainly plausible, especially considering the importance people place on good looks. It could explain why people undergo great risks and costs merely for improving their looks, e.g. by surgeries, diets or steroid intake (see [[#zyzz|Zyzz's photo]]). It could also explain the phenomenon of being ''stunned'' by someone's appearance, as well as "love on first sight" and [[oneitis]].


== Sexy son hypothesis ==
== Sexy son hypothesis ==
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