Other
Chicago Herpetological Society: Cottonmouth
Great color photographs link to a regional map and additional information on the Cottonmouth snake.
Encyclopedia of Life
Encyclopedia of Life: Copperhead
The Encyclopedia of Life presents this in-depth overview of Copperheads (Agkistrodon contortrix), including their habitats, size, conservation status, and much more. Images of this species, and maps of its global distribution can also be...