alligator

subtropical
hibernate
males grow to 14 feet
more docile
rounded snout
show fewer teeth when the mouth is closed
live in fresh water
adults are grayish black
has belly button scar
* have ISOs around mouth only
do not secrete salt from their tongues
make nests out of vegetation in fresh water

 

crocodile

tropical
don't hibernate
males grow to 19+ feet
more aggressive
pointed snout
show more teeth when the mouth is closed
live in brakish/ salty water
adults are light tan to brown
the belly button scars heal
* have ISOs all over (including belly skin)
have functioning salt glands on their tongues
lay nests in mud or sand in brakish water