human
What are the main differences between the crocodile and the alligator?
assistant
The main difference between a crocodile and an alligator is their physical appearance. Crocodiles have longer, more slender snouts than alligators, as well as larger scales on their backs. Alligators also tend to be much more aggressive than crocodiles, with males often fighting each other for territory or mates. Crocodiles are also generally found in freshwater habitats, while alligators prefer saltwater environments.