'Chew the Cud' in the Bible

"'Nevertheless these you shall not eat of those that chew the cud, or of those who part the hoof: the camel, because he chews the cud but doesn't have a parted hoof, he is unclean to you.

The pig, because he has a split hoof, and is cloven-footed, but doesn't chew the cud, he is unclean to you.