Re: How can gayness have a genetic basis?
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A better question is, how could it possibly NOT have a genetic basis
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Do scat and waddle fetishes have a genetic basis? How about strong preferences for the female beauty determined by the prevailing culture? Your ancestors used to like fat chicks.
Much of specific human behavior doesn't have a genetic basis. I'm not talking about general traits, like aggressiveness, intelligence, language ability, reflectiveness, and so on, which are largely the result of brain architecture. I'm talking about being attracted to things which have emotional and cultural significance, such as scat or waddles or beefy males.
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Being attracted to fat chicks definitely has a genetic basis, at least the type of fat chicks you are talking about.
But homosexuality isn't really a specific human behavior, its more of a general one. I wonder what would happen if we did twin studies on people into scat? Not sure, but the ones we've done on homosexuality show a genetic component. We've had many discussions on these forums about the FITNESS of homosexuality, and I think that is still a controversial topic that I have no strong opinions about. But the genetic basis for it seems pretty hard to argue with.
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