Crocodiles vs. Alligators: Know the Difference
By Shumaila Saeed || Updated on December 25, 2023
Crocodiles have a V-shaped snout and interlocking teeth, whereas alligators have a U-shaped snout and overlapping teeth.
Key Differences
Crocodiles possess a more pointed, V-shaped snout suitable for catching fish, while alligators have a wider, U-shaped snout better for crushing.
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Dec 21, 2023
When a crocodile's mouth is closed, its large fourth tooth on the lower jaw fits into a notch in the upper jaw and is visible, unlike the alligator's teeth which are hidden.
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Crocodiles prefer saltwater habitats due to specialized glands for excreting excess salt, whereas alligators are more often found in freshwater environments.
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Crocodiles are commonly found in Africa, Asia, Australia, and the Americas, showcasing a wider range than alligators, which are primarily located in the United States and China.
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Dec 21, 2023
Crocodiles tend to be more aggressive and far-ranging in their habitats, compared to alligators which are relatively more docile and localized.
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Dec 21, 2023
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Comparison Chart
Teeth Visibility
Fourth tooth visible when mouth closed
Teeth not visible when mouth closed
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Geographical Distribution
Africa, Asia, Australia, Americas
United States, China
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Crocodiles and Alligators Definitions
Crocodiles
Large aquatic reptile with a long, pointed snout.
The crocodile slid silently into the river.
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Alligators
A large, semi-aquatic reptile with a broad snout.
The alligator basked on the riverbank.
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Dec 11, 2023
Crocodiles
A member of the family Crocodylidae.
Crocodiles are known for their powerful jaws.
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Dec 11, 2023
Alligators
Known for its powerful bite but quieter demeanor.
The alligator closed its jaws with a snap.
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Crocodiles
A symbol of power and danger in many cultures.
The crocodile is often depicted in ancient mythology.
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Alligators
A species with a more limited range than crocodiles.
Alligators are predominantly found in the southeastern United States.
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Crocodiles
A creature with a tough, scaly hide.
The crocodile's hide is used in luxury fashion items.
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Alligators
Belongs to the family Alligatoridae.
Alligators are less aggressive than their crocodile cousins.
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Crocodiles
Any of various large aquatic reptiles of the family Crocodylidae that are native to tropical and subtropical regions and have thick, armorlike skin and long tapering jaws.
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Alligators
An animal often found in swamps and marshes.
The alligator navigated through the marsh with ease.
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Dec 11, 2023
Crocodiles
A crocodilian reptile, such as an alligator, caiman, or gharial.
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Dec 08, 2023
Alligators
Either of two large semiaquatic reptiles, Alligator mississipiensis of the southeast United States or A. sinensis of China, having sharp teeth and powerful jaws. They differ from crocodiles in having a broader, shorter snout.
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Dec 08, 2023
Crocodiles
Chiefly British A line of people, especially pupils or choir members, standing two abreast.
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Alligators
A tool or fastener having strong, adjustable, often toothed jaws.
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Crocodiles
Known for its ambush hunting technique.
The crocodile waited patiently for its prey.
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Repeatedly Asked Queries
Are alligators aggressive?
Alligators are generally less aggressive than crocodiles.
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Dec 21, 2023
Are crocodiles or alligators more widespread?
Crocodiles have a wider geographical distribution than alligators.
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Can crocodiles live in saltwater?
Yes, crocodiles have salt-excreting glands allowing them to thrive in saltwater habitats.
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Dec 21, 2023
Do crocodiles have any natural predators?
Adult crocodiles have few natural predators, but young can be preyed upon by other animals.
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What distinguishes a crocodile’s snout shape?
Crocodiles have a pointed, V-shaped snout.
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Dec 21, 2023
How can you tell a crocodile from an alligator?
Look at the snout shape and teeth visibility; crocodiles show their fourth tooth.
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Dec 21, 2023
Can alligators tolerate saltwater?
Alligators can tolerate saltwater for short periods but prefer freshwater.
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Dec 21, 2023
Are alligators found outside the United States?
Besides the U.S., alligators are also found in China.
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How fast can crocodiles swim?
Crocodiles can swim at speeds up to 15-18 mph.
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Are alligator populations endangered?
The American alligator is no longer endangered, but the Chinese alligator is.
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What is the typical habitat of an alligator?
Alligators typically inhabit freshwater environments like rivers and lakes.
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Dec 21, 2023
What do alligators eat?
Alligators are carnivorous, feeding on fish, birds, and small mammals.
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Can alligators climb?
Alligators can climb to some extent, especially when young.
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Do alligators hibernate?
Alligators can enter a dormant state during cold weather, known as brumation.
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What is the largest species of crocodile?
The Saltwater Crocodile is the largest crocodile species.
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Do crocodiles show parental care?
Female crocodiles exhibit parental care, guarding nests and helping hatchlings reach water.
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Are crocodile attacks on humans common?
Crocodile attacks are relatively rare but can be deadly.
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What's unique about crocodile skin?
Crocodile skin is tough and is often used in the fashion industry.
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How do alligators communicate?
Alligators use a variety of sounds, from growls to bellows, for communication.
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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