Talk:Fisherian runaway: Difference between revisions

'''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, over many generations. However, the sexual preferences that result motivate body modifications like breast enlargement, hormone supplements and bodybuilding. Contrary to popular belief, no species has ever gone extinct solely due to sexual selection. 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 [[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 could develop where all of a species males become increasingly violent and aggressive, to the point where they all kill each other off and doom the species to extinction.http://www.jstor.org/stable/2410506 However this has never actually happened in any species. The name derives from the originator of the concept, Ronald Fisher, the 20th century British statistician, geneticist, eugenicist and racialist.