Just because something is natural or is in nature does not mean it has to exist everywhere. Is having 8 legs natural for a spider? Yes. Is having blue blood natural? For Cephalopods yes. Is having wings on a butterfly natural? Yes.

Then is homosexuality natural? Yes.

What we define as "nature" or "natural" is merely referring to what we consider to be the norm or socially acceptable. This is not a biological question. It is a social one. It has to do with how we perceive these individuals in our society.

Or to put in in another way, how are human beings considered natural at all? We are practically hairless, bipedal, make our own tools and possess a theory of mind. Where else can you find these characteristics in the animal kingdom? We are unique, and should not be defined or judged with respect to animals. To do so is derogatory and is against the rights of a human being.

What activists are merely saying is that homosexuality has been observed in a few species and thus is not confined to humans. No conclusions can be drawn other than this.