One can easily tell the difference between these two animals by looking at their snouts.
While Crocodiles usually have long pointed snouts which is usually said to take a “V” shape in many descriptions, those of alligators are usually short, wider and takes a somewhat “U” shape.
Looking at the shape of their snouts one can easily tell that they are suited for their specific diet. For instance the alligators’ wide snout is suited for breaking turtle shells while the pointed snout of crocodile is suited for hunting.
Both the upper and lower teeth of crocodiles are usually pointed outwards and interlaced as opposed to what is present in the alligators that have only the upper teeth outward.
Recent studies showed that Alligators have shorter humerus bones in their forelimbs and shorter femurs in their hind limbs than crocodiles.