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Crocodilians

 

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Every habitat on the planet is home to a unique complex of species. Learn more about the animals that live in:

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View incredible nature videos from Planet Earth, including a great white shark plucking a seal from the ocean.

These ancient reptiles are one of the few species to survive from the time of dinosaurs. Known as crocodiles, alligators, and caiman, crocodilians are predators that live in freshwater rivers, lakes, and lagoons. Most hunt for prey, but many lie in wait at the edge of rivers before they strike.

American Alligator

American Alligator

The American alligator ranges throughout the American southeast, where it basks by day and hunts by night.

Caiman

Common Caiman

Once other crocodilian populations became depleted in the 1950s, hunters began harvesting caimans for their skins.

2 Nile Crocodiles

Nile Crocodile

Adult male Nile crocodiles can reach up to 20 feet in length and weigh well over 1,000 pounds.

Saltwater Crocodile

Saltwater Crocodile

Planet Earth's largest living reptile is also known as the estuarine crocodile and Australian saltwater crocodile.

Nature picture credits (top to bottom): Photo © Allan J. Sander (American Alligator); Photo © Tim Miller/TNC (Spectacled Caiman); Photo © Robert Dawson (Nile Crocodile); Photo © George Ihring (Saltwater Crocodile);