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highwaystar101 said:
I reckon there must be an evolutionary reason for homosexuality. A group of animals that are 90% heterosexual must be able to out survive another group of animals who are 100% heterosexual. I don't know what that reason is though, but I'm sure there is one...

Answers on a postcard please guys

IIRC the same gene that causes homosexuality in male offsprings, increases fertility in females.  Though I just heard it on another forum, and didn't check it, so it might be not true.