The issue with finding homosexual behaviour in animals is that it’s never exclusive. Homosexual animals tend to be bisexual at best, and can often be chalked up to erroneous mating.
A lot of these studies are used to validate human homosexuality and harm the “it’s unnatural!” argument touted by conservatives. However using a Call to Nature is fallacious, and could be used to validate all number of animal behaviour.
Huh, wasn’t aware of that. Well, after a bit more research, excluding that one species in that one study, there are no exclusively homosexual animals.