Wood Frog Missouri Department of Conservation

Gray Treefrog and Cope's Gray Treefrog

Gray Treefrog and Cope's Gray Treefrog

Frogs and Toads of Missouri, Missouri's Natural Heritage

Gray Treefrog and Cope's Gray Treefrog

Frogs and Toads of Missouri, Missouri's Natural Heritage

Kansas Herpetofaunal Atlas

Wisconsin Frogs — Fox Run Environmental Education Center

Gray Treefrog and Cope's Gray Treefrog

Kansas Herpetofaunal Atlas

Wood Frog

Frogs and Toads Oregon Department of Fish & Wildlife, Little Frogs To Hide

Pools for Amphibians NC State Extension Publications

Secret lives of salamanders - The Source - Washington University in St. Louis

Frogs and Toads Oregon Department of Fish & Wildlife, Little Frogs To Hide