Input (grade 13): The American Bullfrog (Rana catesbeiana)), often simply known as the Bullfrog in Canada and the United States, is an aquatic frog, a member of the family Ranidae, or â true frogsâ, native to much of North America.
Output (grade 6): The American Bullfrog (Rana catesbeiana) is an aquatic frog. It is a member of the family Ranidae, or "true frogs", native to much of North America.