art_history_animalia, Ernst Haeckel was born #OTD (16 Feb 1834 - 9 Aug 1919). Also bonus #FrogFriday 🐸
"Batrachia" (Frogs)
Plate 68 in Ernst Haeckel’s Kunstformen der Natur (1899-1904)https://commons.wikimedia.org/wiki/File:Kunstformen_der_Natur_(Tafel_68)_BHL47388319.jpg
https://commons.wikimedia.org/wiki/File:Haeckel_frogs_big_spots.jpg
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