Alligators
- dark colored
- broad, rounded snout
- usually found in fresh water
- the fourth tooth on either side of the lower jaw fits into an internal socket in the upper jaw so that these teeth are hidden when the mouth is closed
- lifespan is 30-50 years
- 8 species
- average 500 pounds/226kg
Crocodiles
- grayish-green
- narrow, tapered, triangular snout
- prefer coastal, brackish and salt-water habitats.
- the fourth tooth on either side of the lower jaw is always exposed.
- typically more aggressive than alligators
- lifespan 70 – 100 years
- 15 species
- average 1000 pounds/453kg with sizes up to 2200 punds/1000kg
