They swim very well, mainly using their tails to propel themselves through the water, and, to a lesser extent, using their webbed feet. On land, they can run relatively fast, but only in short bursts. Swimming, crocodiles can go about 10 km per hour. Doing a belly crawl walk, crocodiles can go 5-10 km per hour. They have a life span of up to about 30 to 35 years in the wild, and up to 50 years in captivity.
Alligators have a wide range of calls and vocalizations .
The rotting vegetation in the nest warms the eggs. The temperature of the nest determines the sex of the hatchlings. The female guards the nest from predators. Alligators are among the most nurturing of the reptiles. DIET Alligators are nocturnal and feed primarily at night.