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How are crocodiles different from alligators?
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crocodile
Estuarine, or saltwater, crocodile (Crocodylus porosus), found in brackish waters from Sri Lanka, India, Bangladesh, and Myanmar east to the Solomon Islands and Vanuatu and south to Australia.
Although alligators and crocodiles are both large reptiles within the order Crocodylia, they can be distinguished by several key physical and behavioral differences:
- Snout Shape: Alligators have a broad, U-shaped snout, while crocodiles possess a narrower, V-shaped snout.123
- Teeth: When an alligator’s mouth is closed, its lower teeth are typically hidden. In contrast, a crocodile’s lower teeth—specifically the large fourth tooth—remain visible outside the upper jaw.123
- Coloration: Alligators generally appear gray or black, whereas crocodiles tend to be olive or tan.1
- Habitat: Crocodiles are typically found in saltwater environments, while alligators prefer freshwater habitats like lakes and rivers.12
- Behavior: Crocodiles are generally considered more aggressive than alligators.1
While both animals share similar features like powerful tails and bony-plated backs, these distinct characteristics allow for easier identification in the wild.12