General: Why should we care about these reptiles? You could expand this into a more interesting story, such as the most endangered reptiles, most popular as pets, etc.
Map description is a bit dry, try to expand more.
Some grammatical errors within reptile sections, general clean up of grammar.
American Alligator: “Alligators are among 23 species of crocodilians and one of two species of alligator, the other being the Chinese Alligator.” – is it one of two species in the US, or in the world?
Timber Rattlesnake: Should be “Don’t Tread On Me” flag, or Gadsden Flag.