Leviticus 11:3

11:3 You may eat any among the animals that has a divided hoof (the hooves are completely split in two) and that also chews the cud.

Leviticus 11:6-7

11:6 The hare is unclean to you because it chews the cud even though its hoof is not divided. 11:7 The pig is unclean to you because its hoof is divided (the hoof is completely split in two), even though it does not chew the cud.