Blue American bullfrog, Rana catesbeiana, a rare mutation of a normally green frog caused by a lack of yellow pigment in the frog's skin. Mendocino County, California.
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American bullfrog, amphibian, animal, aquatic, blue, blue bullfrog, blue frog, Bullfrog, California, colorful, fauna, fresh water, freshwater, frog, genetic, herpetology, horizontal, introduced, invasive species, lake, Mendocino County, mutation, nature, non-native, North America, odd, pigment, pond, Rana, Rana catesbeiana, rare, United States, unusual, USA, water, wildlife
- Contained in galleries
- North American Wildlife, Frogs and Toads, American Bullfrog, Rana catesbeiana