reptiles like alligators and crocodiles in usa

aggression aggressive alligator alligators amphibian animal aquatic background beast big carnivore clipping creature crocodile crocodiles crocodylus danger dangerous eye fang fish florida frog gator green head hunting isolate jaws large leather like lizard mouth nature nile niloticus open path powerful predator reptile reptiles rock rough scale show skin snake surface teeth thailand toad tooth tortoise tropical turtle usa water wild wilderness wildlife zoo