Crocodiles, A Fighter from Swamp

Crocodiles are large aquatic reptiles that live throughout the tropics in Africa, Asia, Americas and Australia. Crocodiles tend to congregate in freshwater habitats like rivers, lakes, wetlands and sometimes in brackish water. They feed mostly on vertebrates like fish, reptiles, and mammals, sometimes on invertebrates like mollusks and crustaceans, depending on species. They are an ancient lineage, and are believed to have changed little since the time of the dinosaurs. They are believed to be 200 million years old whereas dinosaurs became extinct 65 million years ago; crocodiles survived great extinction events.Crocodiles are ambush hunters, waiting for fish or land animals to come close, then rushing out to attack. Crocodiles eat fish, birds, mammals and occasionally smaller crocodiles.