A lot of people who will do things like that to animals, will also do those things to children, too...
Completely unrelated phenomena. That's like saying that the Catholic priests that were molesting choir boys did that because they were gay, and
all gays are filthy pedophiles. And unfortunately, there are
way too many ignorant bigots who say exactly that.
The fact is, most of those priests were most likely one of the following, or possibly a combination:
1. Straight pedophiles who would have preferred little girls, but decided to settle for second best rather than nothing (low inhibition control; the vast majority of pedophiles go their entire life without ever touching a child, and instead choose partners that look younger than they really are, etc.)
2. Just plain pedophiles who didn't really care about the sex of the child
3. "Power" rapists who want to feel like they have power over who/what ever they're doing (some people who do bestiality fall in this category, but they're a minority)
4. "Acceptance" rapists who want to feel accepted by the raped (once again, a few bestialists fall in this category as well)
The real facts about zoophilia is that in 99% of cases, it's a totally harmless activity. The animal either enjoys it or doesn't really care, and no one finds out about it most of the time. Just like almost any other form of sexual intercourse; 99% of the time, it's between consenting individuals, and no one finds out about it.
And really, how could you
not tell if an animal is enjoying, or at least ambivalent to whatever you're doing to it? Most animals are capable of expressing rudimentary emotions quite clearly. Sheep can bite or kick. Dogs can bite. A horse could kick you into the next county. Are you constantly worrying about whether your dog is actually enjoying playing fetch, or getting patted on the head? The signs are pretty obvious. Sheep don't have the same body language as dogs, but that doesn't mean they're incapable of kicking you in the family jewels.
A fair number of zoophiles actually form deep emotional bonds with their animal "partners," just like they would with a human, if they were "normal." Others are just in it for the sex, but is that
so different from a guy who has one-night stands with humans?
As for why, there's no way of telling. Why do some men like to see women in lingerie? Why are there "leg men," "butt men," and "breast men?" Why are some people foot fetishists? Why do some people like BDSM? What about the wet and messy fetish? The balloon fetish is supposed to be one of the most common out there, *** is up with that? I don't mean to mock people with that particular kink, but really. Balloons?