Rio Grande Leopard Frog vs. California Red-legged Frog

Both are spotted frogs with back ridges; their records touch in southern California. A: Sharp-edged dark spots on a pale greenish-tan back in the Rio Grande Leopard Frog; small dark flecks, many with pale centres, on brown or reddish in the California Red-legged Frog. B: Smooth in the Rio Grande Leopard Frog; rougher, with small bumps in the California Red-legged Frog. C: White to cream (no open photo shows it) in the Rio Grande Leopard Frog; red under the legs and lower belly in the California Red-legged Frog.

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

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