Crocodylus is a genus of large reptiles commonly known as crocodiles. They are found in tropical and subtropical regions around the world, primarily in freshwater habitats like rivers, lakes, and swamps. Crocodiles are known for their powerful jaws, long bodies, and strong tails, which help them swim efficiently. There are several species within the Crocodylus genus, including the American crocodile and the Nile crocodile. These reptiles are carnivorous, feeding on fish, birds, and mammals. Crocodiles play a crucial role in their ecosystems as apex predators, helping to maintain the balance of their habitats.