american alligator swimming submerged showing eyes, nostrils and transverse row of epidermal scutes above the water.

alligator alligators american anatomy are armor biology bony claws covered crocodile crocodilian ear ears epidermal exoskeleton external eye feet flap florida foot georgia hard hear hide large national nnamerican okefenokee osteoderms photographed plates profile refuge reptile river scales scutes sense showing shut skin slit states swamp united usa vibration water watertight webbed wetland wild wildlife