There are many characteristics of alligators that differentiate alligators from crocodiles but both of them belong to different taxonomical categories. Alligators have a wider muzzle and their eyeballs are sited nearer the upside. When light is blinked over their eyes, larger alligators have a red glow and smaller alligators have a green glow. This can be a very useful tip for those who are looking for alligators in dark. Even in daylight, we can observe that alligators have brown eyes and crocodiles have green eyes.
When the alligators close their jaws, only the upper teeth are able to be seen while in crocodiles, the upper and the lower teeth are visible when they close their jaws. The shape of an alligator’s mouth is like a “U” and the crocodile’s is like a “V”. Although the skin of both the animals is a darker, almost black, the color depends on their environment. The Chinese alligators have a light pattern skin, alligators which live in algae growing water are greenish black and in high tannic acid water which is released from hanging trees have a darker skin.