Updated January 8th 2026, 19:26 IST

Crocodiles and alligators are often mistaken for each other due to their similar appearance. But there are several stark differences between the two reptile creatures. From their physical features to their habitat and behaviour, understanding what sets them apart makes it easier to identify them.
One of the most noticeable differences lies in the shape of their snouts. Alligators have a broad, U-shaped snout, which is shorter and rounded. Crocodiles, on the other hand, have a longer, narrower, V-shaped snout that appears more pointed. Another clear distinction is visible when their mouths are closed. In crocodiles, both the upper and lower teeth are visible, especially the large fourth tooth of the lower jaw. In alligators, the upper jaw hides the lower teeth, making only the top row visible.
Their colour also varies slightly. Alligators tend to have darker, almost blackish-grey skin, while crocodiles usually appear olive green or light brown.
Alligators are mostly found in freshwater environments such as rivers, lakes, swamps, and marshes. They are native primarily to the southeastern United States and parts of China. Crocodiles, however, have a much wider global distribution and can live in both freshwater and saltwater. They are commonly found in Africa, Australia, Southeast Asia, and parts of the Americas. In India, crocodile species such as the mugger crocodile and saltwater crocodile are found in rivers, estuaries, and coastal regions.
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Crocodiles are generally considered more aggressive and territorial compared to alligators. They are more adaptable and tend to thrive in harsher conditions. Alligators are relatively shy and less likely to attack unless provoked.
In rare cases, the two species can coexist in the same habitat, but this happens only in limited regions. Parts of southern Florida in the United States are the only places where both alligators and crocodiles are found naturally. Even there, they tend to occupy slightly different ecological niches to avoid direct competition. Crocodiles prefer saltier waters, while alligators stick to freshwater areas.
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Published January 8th 2026, 19:26 IST