Now I dunno about animals per se, but I do know that all Jedi are Presbyterians, which is probably why Palpatine tried to wipe them out.
??? I was hoping an explanation of that screenshot was forthcoming...
By the way, Jedi are Jesuits. :^D I'm actually sorta half serious... In Empire, Luke even DRESSES like a Jebi*. (Did you know "Jebi" is an old nickname for Jesuits?) Lucas has many combined many mystical traditions into his Jedi, including Eastern ones. Joseph Campbell, who studied the Jesuits at great lengths, essentially is the creator of the Jedi religion, or at least as it stood throughout the original trilogy.
Besides, what other celibate order would be stupid enough to put Anakin, experiencing the pressures of coming into adulthood, alone, unchaperoned, with a beautiful young woman, with the future of the galaxy at stake? C'mon, you don't think Tibetan monks would be that stupid, do you?
(*Of course, if I'm going to infer that he's a Jesuit just by the way he dresses, I guess that means Obi Wan and the little sand critters from the first movie must be Franciscans. Huhheheehehee!)