Professor Gregory A. Clark of the University of Utah wrote a commentary published in Standard-Examiner on March 23, titled, "Homosexuality is biologically natural, not deviant." He argues that homosexuality can be found in animals, and of course animals are natural therefore homosexuality in humans is "natural." He compares humans to worms, chimpanzees and seagulls.
Professor Clark did not make an argument that rape is biologically natural, yet if you were to study the animal kingdom you would certainly find that most sexual acts in animals could be classified as rape. In fact you will find that infanticide (killing an infant) is often attributed to the male positioning himself for sexual advantage with the parent of what he kills. This behavior encompasses a male animal performing the act as a way of reproduction and in many cases it is obvious that the interaction is a behavior that seems to be uninvited if not even forced by vicious attack. It would seem that rape and murder are very natural behaviors in the animal kingdom.
I hope you see the lie in Professor Clark's argument. If he uses this fallacy to try and prove homosexuality is a natural act in humans then he must also accept rape, murder, infanticide, cannibalism and a rash of other morally objectionable activities as "natural," because they are all found in the animal kingdom. This is ludicrous. Rape, murder and cannibalism are not okay just because you can find an animal that may act this way.
There are plenty of things that animals do as a part of their natural instinct, that we humans do not do because we have a moral consciousness that other animals do not possess. We have a moral compass inside often referred to as a soul.
The hidden agenda of Clark's argument is really about the religion of "secular humanism" which runs rampant in our universities. It advocates that there is no God and no moral truths. Their strategy is to eliminate any godly moral values in America and to institute secular humanism. That is "naturally bogus."