The back of a fowlers toad frog.jpg
Perry Bill, U.S. Fish and Wildlife Service
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The back of a fowlers toad frog, Public-domain-image.com (check needed), Anaxyrus fowleri, Public-domain-image.com
commons
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The back of a fowlers toad frog, 
:Image title: The back of a fowlers toad frog
:Image from Public domain images website,
commons
ja
ハシガエルの背面
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ja
ハシガエルの背面
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toad anaxyrus