Why do crocodiles live where they do?

They protect the Nile crocodile because that's the only place where they are supposed to live. People always try to smuggle them but end up in handcuffs. They are a beautiful species but they are still very aggressive. If you were the only one who had this new type of hummingbird, wouldn't you want to show that you are the only one and make everyone else jealous. That's probobly whow the Eygptions think of the Nile Crocodile.