Re: How can gayness have a genetic basis?
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Some things may not serve a clear, obvious evolutionary purpose yet still evolve, I'd imagine.
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Absolutely - which is precisely what makes these discussios interesting to me, so long as 'no clear and obvious purpose' is never confused with 'no evolutionary purpose period'.
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I thought a genetic trait could self-select as long as it did not hinder the host. ie. two genetic configurations develop that provide no advantage or disadvantage to the host. One genetic trait happens to dominate the other, it wins.
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