Final answer:
According to Leviticus 11:7, the pig is the animal that does not chew its cud and is considered unclean.
Step-by-step explanation:
The animal that does not chew its cud and is considered unclean according to Leviticus 11:7 in the Bible is the pig. In this context, the discussion is about dietary laws found in religious texts rather than biological behavior. The reference to pigs not chewing cud is part of these ancient dietary guidelines, which label pigs as unclean animals.