Crocodilians are a group of reptiles that includes crocodiles, alligators, caimans, and gharials. They are known for their long bodies, powerful jaws, and tough, scaly skin. These animals are primarily found in warm regions, often living in freshwater habitats like rivers, lakes, and swamps. Crocodilians are excellent swimmers and can hold their breath underwater for long periods. These reptiles are carnivorous, meaning they primarily eat meat. They use their sharp teeth to catch fish, birds, and other animals. Crocodilians play an important role in their ecosystems by helping to control the populations of their prey, making them vital to maintaining a balanced environment.