Crocodilians are a group of large reptiles that include the CAIMAN and alligator. The CAIMAN is a crocodilian with six letters in its name, while the alligator is a crocodilian with nine letters in its name. Both caimans and alligators are found in tropical regions of the Americas and have similar physical characteristics, such as long snouts and thick, scaly skin. They are both apex predators and feed on fish, birds, and other small animals.