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Keywords from Image Description:
nature animals amphibians frogs smithsonian probably public domain probablypublicdomain SI Neg. . Date na...Frog Centrolenella spinosa Family Centrolenidaeglass frogs ..Credit Carl C. Hansen Smithsonian Institution SI Neg. . Date na...Frog Centrolenella spinosa Family Centrolenidaeglass frogs ..Credit Carl C. Hansen Smithsonian