DistributionRead full entry
North American bullfrogs (Rana_catesbeiana) are only native to the Nearctic region. They are found from Nova Scotia to central Florida, from the East coast to Wisconsin, and across the Great Plains to the Rockies. The natural western limits of this species are now confused due to their introduction into places as far west as California and Mexico. It is known that bullfrogs were introduced to areas of California and Colorado in the early 1900's. The species has also been introduced (accidentally or on purpose) into southern Europe, South America, and Asia.
Biogeographic Regions: nearctic (Native ); palearctic (Introduced ); oriental (Introduced ); neotropical (Introduced )