The eyes, ears and nostrils of crocodilians are positioned for use while the rest of the body is submerged. They have a well-developed bony palate, formed from several skull bones, similar to mammals.
Crocodiles and alligators have an enlarged tooth near the front of the lower jaw, analogous to the canine in a mammal. In crocodiles this tooth tends to protrude, whereas in alligators it is normally more or less hidden in the living animal, fitting into a socket in the upper jaw.
Order - Crocodylia
Families - Alligatoridae & Crocodylidae
Scientific Name: Crocodylus - "pebble-worm", from the Greek kroke (pebble) and drilos (worm), presumably referring to its knobbly skin. Reptiles were often grouped with worms in mediaeval texts. porosus - "calloused" (Greek) Alligator - From the Spanish 'el lagarto' (lizard)