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what is the difference between an aligator and a crocodile?

These two types of reptiles are found in different parts of the world, and have unique physical distinctions, including different shaped snouts. Both are part of the Crocodilia order, along with caimans and gharials, which also share a superficial resemblance.
The wide snout of the alligator packs more crushing power, making it easier to secure prey such as turtles. By contrast, the narrow snout of the crocodile is suited for fish as well as small mammals.


The jaws found on a typical crocodile and an alligator are also different. The upper and lower jaws of the crocodile are essentially the same width, with the teeth exposed in an interlocking pattern. They also have a large, protruding fourth tooth on the lower jaw that is accommodated by depressions in the upper jaw just behind the nostrils.
The alligator, however, has a wider upper jaw, allowing the lower teeth to fit into it snugly, effectively hiding them from view. Only the teeth of the upper jaw are exposed along the lower jaw line.


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