Barking treefrogs are a large, colorful species, with a predominantly green dorsal coloration that is typically broken up by scattered dark spots. At night or during periods of stress, the color will change from green to a deep purple or brown. Males can be differentiated from females by the presence of a green or yellow throat. Adults measure from 2 to 2¾ inches in total length, making them one of the larger tree frogs found in the United States.
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