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Fisherian runaway: Difference between revisions
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'''Fisherian runaway''' is a mechanism by which sexual selection leads to exaggerated, [[Maladaptiveness|maladaptive]] and unhealthy, physical traits (ornamentation) in some individuals of a species. Which plays a role in the evolution of [[beauty]]. In the [[manosphere]] the term is often misunderstood to refer to individuals exaggerating their appearance as lifestyle choice, but actually refers to individuals ''evolving'' more exaggerated appearance than what is optimal. However, the sexual preferences that result motivate body modifications like breast enlargement, hormone supplements and bodybuilding. Contrary to popular belief, [[sexual selection]] hasn't been explicitly proven to be the sole cause of extinctions. Only rapid environmental change such as the end of the Ice Age simply, not affording enough nutrients to provide for the species formerly advantageous but now [[Maladaptiveness|maladaptive]] physical traits. | '''Fisherian runaway''' is a mechanism by which sexual selection leads to exaggerated, [[Maladaptiveness|maladaptive]] and unhealthy, physical traits (ornamentation) in some individuals of a species. Which plays a role in the evolution of [[beauty]]. In the [[manosphere]] the term is often misunderstood to refer to individuals exaggerating their appearance as lifestyle choice, but actually refers to individuals ''evolving'' more exaggerated appearance than what is optimal. However, the sexual preferences that result motivate body modifications like breast enlargement, hormone supplements and bodybuilding. Contrary to popular belief, [[sexual selection]] hasn't been explicitly proven to be the sole cause of extinctions. Only rapid environmental change such as the end of the Ice Age simply, not affording enough nutrients to provide for the species formerly advantageous but now [[Maladaptiveness|maladaptive]] physical traits. | ||
The base sexual preference of an entire species can make them more likely to go extinct,<ref>https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2656.12601</ref><ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1691875/</ref><ref>https://www.sciencedaily.com/releases/2018/04/180411131646.htm</ref><ref>https://www.nature.com/articles/d41586-018-04059-7</ref> but the runaway selection of the most exaggerated members alone, cant cause the entire species to go extinct. There are scientific models that show under a stable environment a feedback loop where male intrasexual competition leading to size dimorphism outstrips the ability of the environment to support this increased size.<ref>http://www.jstor.org/stable/2410506</ref> However this has never | The base sexual preference of an entire species can make them more likely to go extinct,<ref>https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2656.12601</ref><ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1691875/</ref><ref>https://www.sciencedaily.com/releases/2018/04/180411131646.htm</ref><ref>https://www.nature.com/articles/d41586-018-04059-7</ref> but the runaway selection of the most exaggerated members alone, cant cause the entire species to go extinct. There are scientific models that show under a stable environment a feedback loop where male intrasexual competition leading to size dimorphism outstrips the ability of the environment to support this increased size.<ref>http://www.jstor.org/stable/2410506</ref> However this has never been explicitly been proven. The name derives from the originator of the concept, Ronald Fisher, the 20th century British statistician, geneticist, eugenicist and racialist. | ||
== Mechanism == | == Mechanism == | ||