Sierra Nevada Yellow-legged Frog vs. California Red-legged Frog

Their records meet in the Sierra Nevada foothills (El Dorado and Placer counties). A: Faint or missing in the Sierra Nevada Yellow-legged Frog; a clear ridge down each side of the back in the California Red-legged Frog. B: Yellow to orange in the Sierra Nevada Yellow-legged Frog; red in the California Red-legged Frog.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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