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== Evolution == | == Evolution == | ||
Since | Since homosexual acts cannot produce offspring, one would expect attraction to other men (androphilia) to be non-adaptive or even [[maladaptiveness|maladaptive]]. | ||
However, male homosexuality is more prevalent than what selection-mutation balance between androphilia and gynophilia (attraction women) would predict.<ref name="ref42">http://www.bbc.com/news/magazine-26089486</ref> | However, male homosexuality is more prevalent than what selection-mutation balance between androphilia and gynophilia (attraction women) would predict.<ref name="ref42">http://www.bbc.com/news/magazine-26089486</ref> | ||
Additionally, homosexuality and androphilia are somewhat heritable (around 40%),<ref>https://www.ncbi.nlm.nih.gov/pubmed/9251839</ref><ref>http://abcnews.go.com/2020/story?id=2449185</ref> all of which suggests homosexuality is an adaptation, i.e. that it increased men's [[reproductive success]] in the past. | Additionally, homosexuality and androphilia are somewhat heritable (around 40%),<ref>https://www.ncbi.nlm.nih.gov/pubmed/9251839</ref><ref>http://abcnews.go.com/2020/story?id=2449185</ref> all of which suggests homosexuality is an adaptation, i.e. that it increased men's [[reproductive success]] in the past. | ||