Iguanas are all part of the Iguanidae family and is one of three families in the Iguania Suborder, of the Order Squamata. This is one of the largest groups of lizards containing from 700 to possibly over 1000 species. read more
An alligator is a crocodilian in the genus Alligator of the family Alligatoridae. The two living species are the American alligator (A. mississippiensis) and the Chinese alligator (A. sinensis). In addition, several extinct species of alligator are known from fossil remains. read more
In terms of geography, crocodiles are much more common, inhabiting a good chunk of the eastern hemisphere and Central America. Alligators are more modest in their population, living mostly in South America and the southern United States, with a tiny pocket in China. There are 23 species of crocodilians, so there is a lot of variation to consider. read more
Alligators are more modest in their population, living mostly in South America and the southern United States, with a tiny pocket in China. There are 23 species of crocodilians, so there is a lot of variation to consider. read more