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GETTG INTO YOUR GEN: GAY SEXUALY & 'NATURAL SELECTN'
There are numero evolutnary mechanisms that might expla homosexual behavur, which is mon many speci of animals. “Simple reasong shows that evolutn nnot expla homosexualy – how would a homosexualy gene get selected for? It is still not clear to what extent homosexualy humans or other animals is geic (rather than, say, due to hormonal extrem durg embryonic velopment), but there are many mechanisms that uld expla why gene variants lked to homosexualy are mataed a populatn.
A mon assumptn is that homosexualy means not havg children, but this is not necsarily te, pecially cultur other than our own. Until beme acceptable for same-sex upl to live together wtern untri, many homosexual people had partners of the oppose sex. In some gull speci, homosexual partnerships might be a rponse to a shortage of mal – rather than have no offsprg at all, some female pairs raise offsprg together after matg wh a male om a normal male-female pair.