A crocodile has a narrow v-shaped nose, the alligator as a wider nose. The alligator's mouth is made more powerful to eat turtles. The crocodile is more suited to eating small mammals. You can't see an alligator's teeth when it's mouth is closed; its lower teeth fit snugly into pits in the upper jaw. In contrast, a crocodile's lower teeth are always visible. Alligators have a broad snout, while crocodiles have a thinner snout. Alligators tend to be grayish black in color, whereas crocodiles have a light tan appearance. Alligators can only be found in the southeastern United States and in some parts of China. Crocodiles can be found all over the world. In the wild, alligators tend to run away. While not exactly wallflowers, they certainly prefer their own company. Some species of crocodiles, on the other hand, have legendary tempers. The Salt Water Crocodile and the Nile Crocodile have been known to eat people. TY to askyahoo.com.