Any links. And before I read any of them...Which one actually says that humans are supposed to be gay. A person with one leg shorter than the other can make it in society, but that doesn't mean that it's normal to have uneven legs. That's why they make the funny shoes.

A sterile person can have the same relationship as any other person doesn't mean sterility is a human evolved trait. It's a disorder. Homosexuality is a socially viable disorder. That doesn't mean that humans are supposed to be gay, just that it doesn't make them fruitcakes.

A person with vitiligo has nothing wrong with him except he is turning white. Not a big deal really. But still considered aberrant.

So while your collection of resources is quite impressive, they still don't show how a human/mammal/complex life form has evolved to be gay. At best, if I were to seek them out and read them, they would probably find a homosexual situation and try to find a way to conform to some resemblance of "normal". And that is bullshit. If it were normal, you would be able to start at need, then the instinct, then the facilitation.

For example Bonobos...
Perineal swelling, intermenstrual cycle, and female sexual behavior in bonobos (Pan paniscus).
Am J Primatol. 2006 Apr;68(4):333-47.
PMID: 16534808 [PubMed - indexed for

also have sexual practices with their kids. Does that mean humans are biologically predisposed to pedophilia, or are some bonobos just as f'd up as some humans?