How can the existence of homosexuals be explained if ‘they go against human evolution?’
Here are a few ideas as to why homosexuals are not detrimental to evolution:
If parents can raise a maximum number of viable offspring, an investment of an asexual/homosexual child would increase the care available to the other siblings (kin selection) therefor increasing the maximum number of viable offspring the parent can produce. In larger family units such as those of our ancestors, the benefit of an asexual/homosexual would be greater than in smaller families that are more common in the last few generations.
As to homosexuals specifically, having an attraction to the opposite sex may link the homosexual individual to a specific parent pair without being detrimental to the reproductive output. E.g. A gay man may be attracted to the male parent therefor support the family without contributing to the females reproductive output.
I’d be interested to hear any ideas you have as to why homosexuals have survived natural selection if they’re bad for the species?
How do you explain homosexuality in other species?
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