The Nile crocodile is one of the largest reptiles in the world.

The saltwater crocodile is the world's largest reptile and is very dangerous.

The American alligator lives in the swamps of the southern United States.

The Yangtze alligator, a native species of China, is designated as an endangered species.

The American crocodile inhabits southern Florida and the Caribbean.

He put himself in a situation as dangerous as jumping into a crocodile's mouth.