Leviticus 11:24-27

24And by these ye shall become unclean: whosoever toucheth the carcass of them shall be unclean until the even; 25and whosoever beareth aught of the carcass of them shall wash his clothes, and be unclean until the even. 26Every 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. 27And 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.