The King Penguin is very large compared to other species. It is the second largest of them all. Full grown, they can be up… https://www.rawpixel.com/image/4021278/photo-image-background-bird-natureFree Image from public domain license Giraffe sculptures, tall and small, at the St. Louis Zoo, sometimes called "America's Top Free… https://www.rawpixel.com/image/8071183/photo-image-plant-grass-treeFree Image from public domain licenseA lioness from a group of lions known as the Marsh Pride, made famous by wildlife film-makers Jonathan and Angela Scott in… https://www.rawpixel.com/image/8811985/photo-image-public-domain-nature-earthFree Image from public domain licenseSmooth-sided Toad (2005). Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060900/free-photo-image-amazing-amphibian-animalFree Image from public domain licenseZoological Society of London: a black panther. Coloured etching by H. Canton after W. Panormo. https://www.rawpixel.com/image/13951917/image-art-animal-public-domainFree Image from public domain licenseA tiger lying on a wooden platform in a cage and roaring. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288585/free-photo-image-tiger-cat-animalFree Image 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 licenseCheetah at Myrtle Beach Zoo. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/422080/free-photo-image-cat-cheetah-safariFree Image from public domain licenseHercules the liger, half lion, half tiger. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/422101/free-photo-image-lion-tiger-wildlifeFree Image from public domain licenseHercules the liger, half lion, half tiger. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/422114/free-photo-image-tiger-black-and-white-lionFree Image from public domain licenseHercules the liger, half lion, half tiger. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/422100/free-photo-image-tiger-lion-ligerFree Image from public domain licenseKing Dick, Wellington Zoo (1907-1915) by Zak Joseph Zachariah. https://www.rawpixel.com/image/13027664/king-dick-wellington-zoo-1907-1915-zak-joseph-zachariahFree Image from public domain licenseMale lion sitting, isolated image https://www.rawpixel.com/image/9816627/male-lion-sitting-isolated-imageView licenseClose-up of a bear's face in a zoo. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282466/free-photo-image-bear-animal-wild-animalsFree Image from public domain licenseKoala bear sleeping in eucalyptus tree branch. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299779/free-photo-image-koala-animal-animals-images-picturesFree Image from public domain licenseGiraffe Auckland Zoo.The giraffe is an African even-toed ungulate mammal, the tallest living terrestrial animal and the… https://www.rawpixel.com/image/4022399/photo-image-plant-animalFree Image from public domain licenseSculptuur van een griffioen in het Camposanto te Pisa, Italië (1860 - 1881) by Giacomo Brogi and anonymous https://www.rawpixel.com/image/13751328/photo-image-paper-horse-cartoonFree Image from public domain licenseLioness at a Zoo. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced… https://www.rawpixel.com/image/3090599/free-photo-image-lion-animal-americaFree Image from public domain licensePeacock, vibrant blue, green feathers. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3289605/free-photo-image-peacock-zoo-animals-animalFree Image from public domain license