Frog and tadpoles (1900 - 1930) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/436543/free-illustration-image-frog-japanese-art-ohara-kosonFree Image from public domain licenseNotodelphys ovifera (Weinland) = Gastrotheca ovifera (Lichtenstein & Weinland, 1854)Hyla meridionalis (Boulenger) = Hyla… https://www.rawpixel.com/image/7666481/image-art-vintage-treesFree Image from public domain licenseThe edible frog with tadpole, tree frog with tadpole and horned frog. Coloured engraving by J. W. Lowry after C. Bone. https://www.rawpixel.com/image/13967345/image-cartoon-tree-animalFree Image from public domain licensePNG Shooting star in Watercolor style galaxy white background invertebrate. https://www.rawpixel.com/image/13565319/png-shooting-star-watercolor-style-galaxy-white-background-invertebrateView licenseBowl Depicting Row of Abstract Figures, Possibly Tadpoles by Nazca https://www.rawpixel.com/image/8941811/bowl-depicting-row-abstract-figures-possibly-tadpoles-nazcaFree Image from public domain licensePNG Shooting star in Watercolor style galaxy white background lightweight. https://www.rawpixel.com/image/13563832/png-shooting-star-watercolor-style-galaxy-white-background-lightweightView licensePNG Star wildlife yellow astronomy. https://www.rawpixel.com/image/12521539/png-star-wildlife-yellow-astronomy-generated-image-rawpixelView licensePNG Transportation astronomy amphibian universe. https://www.rawpixel.com/image/12074324/png-white-background-galaxyView licenseNight star transportation illuminated. AI generated Image by rawpixel. https://www.rawpixel.com/image/11998333/image-white-background-galaxyView licensePlant fibre mulberry paper amphibian wildlife tadpole. https://www.rawpixel.com/image/14567911/plant-fibre-mulberry-paper-amphibian-wildlife-tadpoleView licensePlant fibre mulberry paper vegetation amphibian outdoors. https://www.rawpixel.com/image/14655169/plant-fibre-mulberry-paper-vegetation-amphibian-outdoorsView licenseShooting star in Watercolor style galaxy white background lightweight. https://www.rawpixel.com/image/13347253/shooting-star-watercolor-style-galaxy-white-background-lightweightView licenseWhitebait, from the Fish from American Waters series (N8) for Allen & Ginter Cigarettes Brands issued by Allen & Ginter https://www.rawpixel.com/image/9611542/image-ginter-graphic-1889-1800-1900Free Image from public domain licenseMolecular Basis of Differential Gene ActivityCollection:Images from the History of Medicine (IHM) Contributor(s):Brown… https://www.rawpixel.com/image/9655142/image-person-art-medicineFree Image from public domain licenseOnbekende vis (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13743239/onbekende-vis-1596-1610-anselmus-boetius-boodt-and-elias-verhulstFree Image from public domain licenseA potato amphibian wildlife tadpole. https://www.rawpixel.com/image/14577423/potato-amphibian-wildlife-tadpoleView licenseGolira creativity amphibian astronomy. https://www.rawpixel.com/image/14048575/golira-creativity-amphibian-astronomyView licenseAn overhead shot of a large number of fish swimming in shallow water. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3291806/free-photo-image-algae-amphibian-animalFree Image from public domain licenseMountain yellow-legged frogA mountain yellow-legged frog (Rana muscosa) after it was introduced into an undisclosed stream… https://www.rawpixel.com/image/4030396/photo-image-plant-beeFree Image from public domain licenseHistoria naturalis ranarum nostratium in qua omnes earum proprietates, praesertim quae ad generalionem ipsarum pertinent… https://www.rawpixel.com/image/14011166/image-cartoon-animal-public-domainFree Image from public domain licenseWestern Tiger Salamanders (Ambystoma mavortium) in Lamar Valley by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038619/photo-image-fish-animalFree Image from public domain licenseAmerican ToadPhoto by Courtney Celley/USFWS. Original public domain image from Flickr https://www.rawpixel.com/image/4028385/photo-image-nature-animalFree Image from public domain licenseMicroscopy: parts of a [water] plant. Coloured lithograph, 1838, after D.C.G. Ehrenberg. https://www.rawpixel.com/image/13984072/image-plant-art-waterFree Image from public domain licenseJuvenile longnose sucker by Jay Fleming. Original public domain image from Flickr https://www.rawpixel.com/image/4039129/photo-image-plant-water-fishFree Image from public domain licenseStrolling Among Pigeons at Fountain Square 06/1973. Photographer: Hubbard, Tom. Original public domain image from Flickr https://www.rawpixel.com/image/8770397/photo-image-person-bird-animalFree Image from public domain license