Elachistocleis ovalis frog, native to South America (Engystoma ovale), and European green toad, Bufo viridis. Handcolored engraving by Mme. Fournier after an illustration by Oudart from Charles d'Orbigny's "Dictionnaire Universel d'Histoire Naturelle" (Universal Dictionary of Natural History), Paris, 1849.

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Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
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