Wild About Illinois Frogs and Toads!
Floods Brought Wave Of Frogs And Toads To Missouri, A Boon For Biologists
List of Frogs and Toads Found in Missouri with Pictures
Columbia Spotted Frog - Montana Field Guide
Frozen frogs: The skill that helps them survive the winter
Wisconsin Frogs — Fox Run Environmental Education Center
Frogs and Toads of Missouri, Missouri's Natural Heritage
Panamanian golden toad, Adaptations & Facts
Frogs and Toads of Missouri, Missouri's Natural Heritage
St. Louis District, U.S. Army Corps of Engineers - Frogs, toads, salamanders and newts are all amphibians, they all typically start as larva (tadpoles) with gills and turn into adults with lungs.
Crawfish Frog Oklahoma Department of Wildlife Conservation
Eastern Spadefoot
Illinois Frogs And Toads Poster
Five things about those boisterous bullfrogs