>>509426527
Gators only exist in the American and Chinese variety, they got a U shaped jaw
Crocs live in warmer climates and got a V shaped jaw. Some species have a higher tolerance for saltwater
Caiman are just shittier not-gators that live in South America
Gharial are super specialized fish eating crocs that live in shit holes like India and are Critically endangered

There used to be cooler bigger crocs as long as a bus and hoofed crocs that were adapted for almost fully terrestrial life but they're all extinct now