Alligator gar are a fresh water fish, mostly found in Southern US States. These are small for the species. Documents have shown these fish can grow up to 10 ft. (3 m) in length. Overfishing and habitat destruction has impacted the population, which are declining in numbers. They are known as “primitive fish” as they retain characteristics of their ancestors from 100 million years ago. These are for sale at the fish market at the Wharf in Washington, DC. Click on the image for a larger view.