LMAO!
Wikipedia is an online encyclopedia that ANYONE can edit. Half the time they never even cite a source. The moderators there are leftist radical homo-activists.
Sorry, Try again.
Irrational perverted sexual behavior by animals isn't a yardstick to measure rational human behavior.
I agree, animal behavior is not a yardstick to measure human behavior by, but to say that no other animals display homosexual behavior is just wrong.