Can you find examples in nature of homosexuality? Nope, they don't exist.
Are you serious? Do you really believe that?
Maybe you have never been to a farm. Animals have urges. True, they are based on the primal instinct to procreate, meaning male/female sex, but I am quite sure that procreation has little to do with an animals desire for gratification. I mean, seriously, are you always thinking of baby-making when you get laid?
Here is a true story:
When I was 15, worked on a farm that raised cashmere goats. The bucks(males) and the does(females) were kept in seperate areas for the purpose of population control. This is not because male goats tend to impregnate every doe they see, but, more basicaly, they are horny as, well, goats. They will mount anything that resembles an animal and proceed to fornicate with vigor.
Well, since the bucks had no access to does, what do you suppose they would do? They would rape each other, that's what.
So, anyway, at that time the farm had 4 bucks. One, named Victory, was the dominant male. One day, Victory broke his leg while trying to molest a "lesser" buck. A vet came out to the farm, and after examining Victory decided that the best thing was to "put him down," as it were. He filled a hypodermic needle with some type of poison, injected him, and within 30 seconds victory fell to the ground, dead as dead can be.
It took 30 seconds to put him to sleep, but it took at least 3 minutes to fight off the other bucks, who were busy having their way with the corpse before it even hit the ground.
Do you think the goats were thinking about the fact that Victory was male, or even that he was dead? No. They were only thinking of inserting their penus into an unguarded anus. Male or female, to a goat an anus is an anus.
The moral of the story? Do not bend down in front of a goat, and homosexuality DOES exist in nature.
Please, christies, do not confuse science with sunday school. They are DEFINATELY not the same thing.