In: Biology
The order Crocodylia includes the “true crocodiles,” alligators, caimans, and gavials. List the similarities and differences among them.
CHARACTERISTICS | ALLIGATORS | CAIMANS | GAVIALS |
FAMILY | Alligatoridae | Alligatoridae with 3 genera | Gavialidae |
DISTRIBUTION(all through the tropics in Africa, asia, America and Australia) | only 2 species exist.. American alligator and chinese | Central and Southern Mexico to Ecuador and East of Andes into Uruguay, Paraguay and Northern Argentina | India, pakistan, bangladesh, bhutan |
BODY | Black or olive brown in color, shaped snout |
Small to Large, have a dorsal flaring dorsal horn on hyoid plate, a large nasal foramen, and an angular with a blunt anterior tip not extending to post intermandibular foramen Snout is U shaped |
Snout is V shaped which varies with the age.Body is olive colored. |
FOOD(All are carnivorous) | Eat hard shelled creatures | feed on amphibians, insects, snails and larger vertebrates | Designed to eat more fish |
SOUND | most noisiest | inhales air into lungs and make deep roar sounds | adult males develop bulbous growth at the tip of the snout and make sounds |
PARENTAL CARE | lay eggs and female take care of it | Build nest mounts in which eggs are deposited. Have parental care | build nests on moist sand |