2021 Alligator Calendar! There are two living species of alligator, one found in China, and the other in the Southeastern United States. A look at this rugged reptile is a look at the ancient world. Scientists believe that the species haven’t had major changes in 8 million years, and their first appearance on Earth was more than 29 million years before that! This 2021 reptile calendar is sure to please all Alligator fans.