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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