The Zoo, København, Denmark. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305702/free-photo-image-face-animals-animalFree Image from public domain licenseA zoo with giraffes, tigers, and a peacock. Coloured lithograph. https://www.rawpixel.com/image/13951330/zoo-with-giraffes-tigers-and-peacock-coloured-lithographFree Image from public domain licenseZoo Berlin, Berlin, Germany. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286893/free-photo-image-jellyfish-fish-animalFree Image from public domain licenseProfile of a parrot Ara Chloropterus in Rhodes, Greece. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3339285/free-photo-image-parrot-animal-zooFree Image from public domain licenseFree southern white faced owl close up portrait photo, public domain animal cc0 image. https://www.rawpixel.com/image/5920344/photo-image-public-domain-nature-featherFree Image from public domain licenseZoological Society of London: two wolves of Hudson Bay. Coloured etching by W. Panormo. https://www.rawpixel.com/image/13952835/image-dog-wolf-animalFree Image from public domain licenseTwo Indian tapirs taking a bath in a pool of stagnant water in a jungle. Colour lithograph after W. Kuhnert. https://www.rawpixel.com/image/13962344/image-jungle-plant-grassFree Image from public domain licenseFree crocodile skin closeup image, public domain animal CC0 photo. https://www.rawpixel.com/image/5903923/photo-image-background-public-domain-natureFree Image from public domain licenseZoological Society of London: a pair of white or silver lions. Coloured etching by W. Panormo. https://www.rawpixel.com/image/13952523/image-lion-art-animalFree Image from public domain licenseGreen snake on tree branch. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305638/free-photo-image-tropical-rainforest-animalFree Image from public domain licenseCute red panda background, wildlife image. Free public domain CC0 photo. https://www.rawpixel.com/image/6032883/photo-image-background-public-domain-natureFree Image from public domain licenseFree scarlet ibis in nature background photo, public domain animal CC0 image. https://www.rawpixel.com/image/5925173/photo-image-background-public-domain-pinkFree Image from public domain licenseHead of an Ara ararauna, blue and yellow parrot. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3339387/free-photo-image-animal-parrot-zooFree Image from public domain licenseZoological Society of London: a panther drinking from a stream. Coloured etching by W. Panorma after H. Smith. https://www.rawpixel.com/image/13952764/image-animal-public-domain-natureFree Image from public domain licenseFree rainbow lorikeet on a branch portrait photo, public domain animal CC0 image. https://www.rawpixel.com/image/5920093/photo-image-public-domain-tropical-rainbowFree Image from public domain licenseFree parrot with blur background portrait photo, public domain animal CC0 image. https://www.rawpixel.com/image/5922951/photo-image-background-public-domain-tropicalFree Image from public domain licenseZoological Society of London: two nilgais. Coloured etching by W. Panormo. https://www.rawpixel.com/image/13967833/zoological-society-london-two-nilgais-coloured-etching-panormoFree Image from public domain licenseFree meerkat family portrait in nature background photo, public domain animal CC0 image. https://www.rawpixel.com/image/5922625/photo-image-background-public-domain-natureFree Image from public domain license A pink pig and pumpkins at the Jubilee Zoo, a petting zoo and farmstead play area for children, just… https://www.rawpixel.com/image/8068244/photo-image-plant-grass-treeFree Image from public domain licenseZoological Society of London: a pair of white or silver lions. Coloured etching by W. Panormo. https://www.rawpixel.com/image/13962348/image-dog-lion-artFree Image from public domain licenseZoological Society of London: a seal. Coloured etching by W. Panormo. https://www.rawpixel.com/image/13952719/zoological-society-london-seal-coloured-etching-panormoFree Image from public domain licenseZoological Society of London: a Rusa deer. Coloured etching by W. Panormo. https://www.rawpixel.com/image/13968112/zoological-society-london-rusa-deer-coloured-etching-panormoFree Image from public domain licenseZoological Society of London: a hippopotamus. Coloured etching. https://www.rawpixel.com/image/13962237/zoological-society-london-hippopotamus-coloured-etchingFree Image from public domain licenseFree parrot eating nuts close up portrait photo, public domain animal CC0 image. https://www.rawpixel.com/image/5904358/photo-image-public-domain-tropical-birdFree Image from public domain licenseFree blue and yellow parrot head close up portrait photo, public domain animal CC0 image. https://www.rawpixel.com/image/5922947/photo-image-public-domain-blue-tropicalFree Image from public domain licenseA rhinoceros in its enclosure. Coloured reproduction of an etching by F. Lüdecke. https://www.rawpixel.com/image/13960615/image-plant-animal-public-domainFree Image from public domain licenseGiant Panda (2009) by Mehgan Murphy. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3061717/free-photo-image-animal-bear-pandaFree Image from public domain licenseVintage elephant png, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6257338/png-sticker-vintageFree PNG from public domain licenseBrookfield Zoo, black panther poster by Federal Art Project. Original public domain image from the Library of Congress.… https://www.rawpixel.com/image/8631641/image-art-tiger-vintageFree Image from public domain licenseA lion yawning while lying down on grass ground. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299073/free-photo-image-cat-wild-lionFree Image from public domain licenseAsian Water Dragon (2018) by Skip Brown. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060402/free-photo-image-dragon-lizard-greenFree Image from public domain licenseReindeer stag png sticker drawing vintage illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6270957/png-xmas-stickerFree PNG from public domain licenseTiger sitting on rock in front of leafy green trees and vegetation in sunlight, Copenhagen. Original public domain image… https://www.rawpixel.com/image/3284002/free-photo-image-tiger-big-tree-leopardFree Image from public domain licenseVintage tortoise png, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6257169/png-sticker-vintageFree PNG from public domain licenseVicunas (1831) painting in high resolution by Jacques–Laurent Agasse. Original from The Yale University Art Gallery.… https://www.rawpixel.com/image/3004520/free-illustration-image-landscape-painting-animal-landscape-neo-classicFree Image from public domain licenseCrested Porcupine, Hystrix cristata (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum.… https://www.rawpixel.com/image/561515/porcupine-vintage-styleFree Image from public domain licenseBlack fox png, vintage wild animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6261627/png-sticker-vintageFree PNG from public domain licenseGiraffe animal png sticker illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6284641/png-sticker-public-domainFree PNG from public domain licenseLion standing in the woods. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3293453/free-photo-image-lion-animal-cc0Free Image from public domain licenseAsian Elephant (2016) by Adam Mason. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060565/free-photo-image-elephant-nature-forestFree Image from public domain licenseSloth png, vintage animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6257183/png-sticker-vintageFree PNG from public domain licenseGiant Panda (2007) by Mehgan Murphy. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060895/free-photo-image-bear-animal-zoo-pandaFree Image from public domain licensePNG whitetail deer head, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6259249/png-sticker-vintageFree PNG from public domain licenseGiant Panda (2005) by Jessie Cohen. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060891/free-photo-image-bear-panda-animal-zooFree Image from public domain licenseRed Panda (2007) by Mehgan Murphy. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060897/free-photo-image-red-panda-snowFree Image from public domain licenseHorse png, vintage animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6256561/png-sticker-vintageFree PNG from public domain licensePNG Sherlock lion, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6259158/png-sticker-vintageFree PNG from public domain licenseVintage rabbit with pocket clock, animal illustration vector. Free public domain CC0 graphic https://www.rawpixel.com/image/6259221/vector-sticker-vintage-public-domainFree Vector from public domain licenseVintage moose png, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6257374/png-sticker-vintageFree PNG from public domain licenseGreen Tree Python (2007) by Smithsonian Institution. Original from Smithsonian's National Zoo. Digitally enhanced by… https://www.rawpixel.com/image/3060888/free-photo-image-snake-zoo-artFree Image from public domain licenseVintage bull png, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6261608/png-sticker-vintageFree PNG from public domain licenseTiger png, vintage bw animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6257152/png-sticker-vintageFree PNG from public domain licenseOriental Fire–bellied Toad (2008) by Smithsonian Institution. Original from Smithsonian's National Zoo. Digitally… https://www.rawpixel.com/image/3061650/free-photo-image-frog-public-domain-animals-toadFree Image from public domain licenseTiger png, vintage animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6257079/png-sticker-vintageFree PNG from public domain licenseRhinoceros Snake (2010) by Smithsonian Institution. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060031/free-photo-image-colorful-snake-greenFree Image from public domain licenseVintage bear png, animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6259446/png-sticker-vintageFree PNG from public domain licenseTiger walking on grassy field in black and white. Original public domain image from Flickr https://www.rawpixel.com/image/3583254/free-photo-image-nature-white-tiger-black-and-whiteFree Image from public domain licensePanda png, vintage animal clipart, transparent background. Free public domain CC0 graphic https://www.rawpixel.com/image/6256528/png-sticker-vintageFree PNG from public domain licenseA Tiger and a Sleeping Leopard (1788) print in high resolution by George Stubbs. Original from The Yale University Art… https://www.rawpixel.com/image/3819815/illustration-image-art-vintageFree Image from public domain licenseCheetah (2014) by Ronda Gregorio. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060055/free-photo-image-cheetah-cat-photographyFree Image from public domain license