Barn owl in the field of flowers. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283035/free-photo-image-bird-barn-owl-eyeFree Image from public domain licenseMacro of a bald eagle looking up. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305258/free-photo-image-eagle-background-eyeFree Image from public domain licenseCartoon starfish png sticker, sea animal illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6458108/png-face-stickerFree PNG from public domain licenseGetting ready for the sulphurersCollection:Images from the History of Medicine (IHM) Author(s):Wain, Louis, 1860-1939… https://www.rawpixel.com/image/9648407/image-background-face-catFree Image from public domain licensePoster of a raccoon with one paw in a lake, with the caption "Wash your hands before touching your eyes" https://www.rawpixel.com/image/9975629/image-hands-vintage-eyesFree Image from public domain licenseSiberian husky dog with bright blue eyes in the snow. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303779/free-photo-image-dog-canada-faceFree Image from public domain licenseClose-up of the face of a tabby cat with brown eyes lying on a sofa. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3285718/free-photo-image-cat-carpet-laying-sleepFree Image from public domain licenseEclectric Oil Collection:Images from the History of Medicine (IHM) Publication:Buffalo, N.Y. : Cosack & Co., [18-… https://www.rawpixel.com/image/9648412/image-cat-medicine-abstractFree Image from public domain licenseClose-up of a blue-eyed cat lying on the sofa and looking at the camera. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297050/free-photo-image-kitten-animal-catFree Image from public domain licenseCartoon crab png sticker, sea animal illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6458085/png-face-stickerFree PNG from public domain licenseCuriosity killed the cat: but it can save your life. Original public domain image from Flickr https://www.rawpixel.com/image/9648405/image-cat-person-medicineFree Image from public domain licenseFlock of white and grey cranes, some with red at eyes and forehead, against a gold background; cranes stand, preen, and… https://www.rawpixel.com/image/7638623/image-background-art-vintageFree Image from public domain licenseCartoon fish png sticker, sea animal illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6458191/png-face-stickerFree PNG from public domain licenseUnderwater background, cartoon sea life illustration. Free public domain CC0 image. https://www.rawpixel.com/image/6461653/image-background-face-public-domainFree Image from public domain licenseBlack and white macro shot of a cat's face. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288480/free-photo-image-kitten-abyssinian-animalFree Image from public domain licenseAn owl at the Alligator Adventure in South Carolina. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/422091/free-photo-image-owl-bird-animalFree Image from public domain licenseClose-up of a blue-eyed hairless hairless cat. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300685/free-photo-image-dog-cat-animalFree Image from public domain licenseFish png sticker, animal cartoon illustration on transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6535320/png-sticker-public-domainFree PNG from public domain licenseFunny pirate kitten drawing, animal illustration. Free public domain CC0 image. https://www.rawpixel.com/image/6264699/image-vintage-public-domain-artFree Image from public domain licenseBlack Power, chromolithograph art by Alfredo Rostgaard. Original public domain image from Smithsonian. Digitally enhanced by… https://www.rawpixel.com/image/9741531/image-art-tiger-vintageFree Image from public domain licenseThe Black Cat, for Edgar Allan Poe's “Selected Tales of Mystery,” 1909 by John Byam Liston Shaw (British… https://www.rawpixel.com/image/9086442/image-edgar-allan-poe-macabre-poesFree Image from public domain licenseClose-up of a tabby cat lying on its back on a white blanket. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297092/free-photo-image-cat-kitten-picture-animalFree Image from public domain licenseThe dogs of Boytown (1918) vintage icon by Walter Alden. Original public domain image from Wikipedia. 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Free public domain CC0 image. https://www.rawpixel.com/image/6458156/png-face-stickerFree PNG from public domain licenseSeated tiger at bottom; pine tree along L and top edge; tiger's PL paw raised with outstretched claws; blue and yellow eyes;… https://www.rawpixel.com/image/7638554/image-art-vintage-treeFree Image from public domain licenseThe White Margined Unicornfish (Naso annulatus) is an unusual looking fish species that belongs to the… https://www.rawpixel.com/image/4021259/photo-image-background-eyes-natureFree Image from public domain licenseThe Baby Alligator. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283002/free-photo-image-crocodile-swamp-dark-wallpaperFree Image from public domain licenseA close-up of a lion's eyes. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296936/free-photo-image-animal-cc0-creative-commonsFree Image from public domain licenseA docile fox sitting on dry grass. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283059/free-photo-image-fox-sunset-norwayFree Image from public domain licenseUtagawa Hiroshige (1797 – 1858) Jumantsubo Plain at Fukagawa. Original public domain image from the MET museum. https://www.rawpixel.com/image/7639526/original-public-domain-image-from-the-met-museumFree Image from public domain licenseTiger with large eyes and pronounced brows and whiskers; standing with lower body in LL and back of body in UR; claws… https://www.rawpixel.com/image/7638429/image-art-vintage-collageFree Image from public domain licenseProfile of a siberian husky's snout and blue eyes in the snow. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286908/free-photo-image-dog-animal-blackFree Image from public domain licenseClose up eagle shooting. 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Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286476/free-photo-image-kitten-animal-adorableFree Image from public domain licenseMacro of a cat's green eyes. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300945/free-photo-image-cat-kitten-abyssinianFree Image from public domain licenseA Siamese cat with blue eyes is looking up and resting on the window sill.. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3283706/free-photo-image-window-blue-eyed-cat-animalFree Image from public domain licenseSeated tiger with raised front PR paw, partially open mouth, ears back, and blue eyes. Original from the Minneapolis… https://www.rawpixel.com/image/7637080/image-art-vintage-public-domainFree Image from public domain licenseThe Calling of Saints Peter and Andrew; Initial D: Saint Andrew; Initial Q: Saint Peter by Master of the Brussels Initials https://www.rawpixel.com/image/14263643/image-background-paper-borderFree Image from public domain licenseThe Offering of the Boar's Head, from The Story of Meleager and Atalanta by Jan Leyniers https://www.rawpixel.com/image/9001038/image-arrow-dog-plantFree Image from public domain licenseMacro of monkey's face with eyes closed and light brown fur. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305353/free-photo-image-monkey-face-animal-kingdomFree Image from public domain licenseGreat Indian Fruit Bat attributed to Bhawani Das (Indian) or a follower https://www.rawpixel.com/image/9086799/great-indian-fruit-bat-attributed-bhawani-das-indian-followerFree Image from public domain license