[Svartalfiar]

“You never see two male animals coming together,” he said – though research has found that over 1,500 species engage in homosexual behaviour.

Wasn't almost all of those 'homosexual behaviors' just males in heat trying to bang anything they see moving? Or, just pack dominance? I'm pretty sure they've only seen one or two cases of actual homosexuality in other species.

[Mr. K]

Just like a dog will hump anyone’s leg, some animals will do that too- I have yet to see where an animal allowed another to anally penetrate though.