I am still thinking about homosexual penguins from earlier in the post. Somehow that seems about right...
As a Missouri farm kid, I can say that, like prisoners, cattle will take on homosexual behavior if that's all they can get. If other opportunities are there, they will take them.
And, I mean, a dog will hump your leg, right? One has to understand that animals don't place the psychological/emotional/social importance on IT that we do. They will do what they can do.
I always remember an after-church function (and I grew up in a TERRRIBLY conservative church) in which the paster's dog just RAVAGED a couch pillow right in from of everyone.
Just curious: does anyone know if upper primates will respond to "monkey porn"? Has anyone ever done this experiment??? (Not you personally, necessarily. ; )