Alligators are in the same family as other large reptiles like Crocodiles but are native to only two countries, which are the southern USA and China (where the Alligator is now nearly extinct). Alligators tend to be smaller than their Crocodile cousins but have been known to move at speeds of up to 15mph on land making them one of the fastest large reptiles in the world. Despite their size, there are a number of distinct differences between Alligators and Crocodiles as an Alligator's snout is shorter than that of a Crocodile, and with their mouths shut, an Alligator's teeth cannot be seen but a Crocodile's can. Alligators are also commonly known as Gators in their native, southern North American habitats.
Alligator Anatomy and Appearance
Alligators are very large reptiles, with males growing up to 4.5 meters in length. The female Alligator tends to be slightly smaller, with a total body and tail length of between 3 and 3.5 meters. The Chinese Alligator is a much smaller species, almost half the size of a female American Alligator. Alligators have an armour-plated body that varies in colour from yellow, to green, to brown, finally turning almost completely black in old age. The tail of the Alligator is incredibly muscular and is used to propel the animal when it is in the water. Alligators have short, stocky legs with webbing between their toes. This not only helps them when they are swimming but also means that they can negotiate the muddy river banks with ease.
(source:google/http://a-z-animals.com/)
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