What is the difference between a crocodile and an alligator?

So jordan..umm you have clearly not done your homework! Freshwater crocodiles DO exist! Right here in australia! Anywho,the most common difference are their snouts; one being long and narrow the other U-shaped,saltwater crocs are the largest to grow ( an average male can reach up to 7 meters and weighing 1500 kilos) freshwater crocs arent quite that large and are much less aggressive compared to their larger cousins ( known to be relatively friendly but please dont go testing the theory!) Hope this helps!