Much of this observed behavior has nothing to do with homosexuality. It is the dominance that they are asserting. When a Male Hippo defeats the old bull he bites his tail off, should I call that cunnilingus or fellatio of some sort? When the Old Bull has surrendered the challenger mounts him to further humiliate him, is this the homosexual behavior that’s spoken of? Bear in mind the reason the conflict begins is the desire of the young bull to mate with the cows in the pod.
I figure a lot of the evidence attached to a political or social agenda is cherry picked. That’s what happened with climategate, when the U.N. scientists deleted data that didn’t match their predetermined conclusion. Science mixed with just about anything else always equates to bad science.