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Sigma KEE - Alligator
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alligator
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. Alligators first appeared during the Paleocene epoch about 66 million years ago. [courtesy Wikipedia]
Relationships      
Parents reptile A ColdBloodedVertebrate having an external covering of scales or horny plates. Reptiles breathe by means of Lungs and generally lay eggs.


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