From the bottom to the top:
Yes, it's normal for humans to kill their babies. This is exemplified by abortions. There are even a large amount of people that (1) sacrifice their children for some ceremonial reasons, also (2) parents that just kill their children because they're psychotic and "can't deal".
As for your argument suggesting that I'm not proving that animals are homosexual: the mere fact that animals exhibit homosexual behaviors (i.e. same-sex sex) is homosexual by instance, making homosexual behavior undoubtedly homosexuality -- just not as an orientation. But even beyond that, you're failing to recognize that affectional orientation is simply a part of human and animal sexuality. There's sexual identification/identity, sexual behavior, and affectional/sexual orientation -- each distinguished.
Lastly and furthermore, you may not have read the article -- or have done any research on sexuality at all -- but there are species of dolphins and monkeys that are endowed with the capacity to be affectionally oriented; meaning they form non-heterosexual relationships with members of the same sex much like we humans do.
What more must I say? As I've stated before, you're in denial of non-heterosexuality being a natural variant of human sexuality, and I don't know why. I do know that it's your own personal problem, though, and that there isn't much more I care to say on the matter since you clearly aren't accepting it for what it is, what it always has been, and what it's going to always be...
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