The frog is a tail-less, web-footed amphibian with long back legs for high jumping. The largest of the North American frogs is the bullfrog, known for its deep bellowing. Some frogs, like the red-eyed tree frog, possess striking colors. In this species, it is the male that does all the croaking; the female is mute. This calendar features full-color images of a variety of frogs in their natural habitat.
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