Differences Between Crocodiles and Alligators and Gharials

Last Updated: Jul 26, 2023

Crocodiles, alligators, and gharials are giant aquatic reptiles that exist in regions throughout the world. Crocodiles can be found in Africa, Asia, Australia, and North America, while alligators in North America and Asia. Gharials can only be found in India and neighboring countries.

This page will explore critical differences between crocodiles, alligators, and gharials.

Aspects	Crocodiles	Alligators	Gharials
Family	Crocodylidae	Alligatoridae	Gavialidae
Body Color	Olive and Tan (Lighter)	Gray and black (Darker)	Olive colored
Water bodies	Saltwater	Freshwater	Freshwater
Snout Shape	Pointed & V-shaped	Wide & U-shaped	Long, thin and distinct boss at the end snout
Salt Glands	Present and osmoregulate in salinity regions	No salt glands	Present
Behavior	Aggressive	Less Aggressive	Very shy
Teeth	Lower jaw teeth visible when mouth shut	Lower jaw teeth not visible when mouth shut	Sharp teeth
Locomotion Speed	20 mph	30 mph	15 mph
Body Length	Up to 17 feet long	Up to 14 feet long	Up to 15 feet long
Body Weight	Over 2200 lbs (Saltwater Crocodile)	Around 1000 lbs (American Alligator)	Up to 2000 lbs
Bite Force	3500 pounds per square inch (PSI)	2900 PSI	2006 PSI
Life Span	Up to 70 years	Up to 50 years	Up to 50 to 60 years
Total Species	13	8	2