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Originally Posted by CaptainCrunch
Ok, I might be confused because I'm not scientifically minded. But how does sex between same sex benefit and evolutionary advantage since there's no continuation of the species involved, which means in a pure homosexual society for example it wouldn't exist long enough to evolve in the purest sense?
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It could be nature's way of thinning the herd as it isn't always advantageous for individuals to procreate. I read about a study before than indicated a higher rate of homosexuality among people who were the youngest in families with more than 3 children. I would also love to know if population density effects it.
I know that some mammal species (ex. Richardson Groundsquirrels IIRC) actually become less sexually active when their populations are too high. Many do not even look for mates. Conversely, when their populations are low, they do it like crazy... it's one of the reasons farmers have so much trouble controlling them. It's obviously not a conscious decision to them, but something environmental that triggers a response in sexual behaviour.