Leviticus 11
26 Every beast which parteth the hoof, and is not clovenfooted, nor cheweth the cud, is unclean unto you: every one that toucheth them shall be unclean.
27 Ref And whatsoever goeth upon its paws, among all beasts that go on all fours, they are unclean unto you: whoso toucheth their carcass shall be unclean until the even.