Human: What are some of the main differences between a crocodile and an alligator? Assistant: 

1. Crocodiles have longer snouts than alligators, which helps them to better catch prey in water.
2. Crocodiles have more teeth than alligators, with up to 70 in their upper jaws alone.
3. Crocodiles have a more rounded body shape than alligators, with a wider head and shorter tail.
4. The skin of a crocodile is thicker and tougher than that of an alligator.
5. Crocodiles tend to live in saltwater environments, while alligators prefer freshwater habitats.