sentence: Alligators have shorter and wider snouts.
sentences_before: There are several differences between alligators and crocodiles.
sentences_after: They prefer fresh water to saltwater. Crocodiles have a gland that removes much of the salt. Alligators do not have this gland. In alligators, the fourth tooth of their lower jaw fits into a pit in the upper jaw. In crocodilians this tooth fits into a groove on the outside of the jaw.
concept_name: alligator
headings: Alligatoridae Alligators vs crocodiles