The largest species of crocodile is the sea water Crocodile, found in northern Australia and throughout South-east Asia. It is the prime reptile at this time living on Earth. Confusingly, in northern Australia the brine Crocodile is sometimes called an "alligator", which it is not, and the slighter Freshwater Crocodile called a "crocodile". This is possibly because the long-snouted Freshwater Crocodile or "fresher" does look a bit like a miniature Nile Crocodile, while in comparison the "saltie" could be said to look like the far less dangerous American Alligator. So the Alligator Rivers in the Northern Territory are in fact named after the Saltwater Crocodile. This is why some northern Australians will claim that alligators, not crocodiles, are the dangerous ones.