Bison roam the fields at Neal Smith National Wildlife Refuge2nd place in the 2009 photo contest for the Animals category.… https://www.rawpixel.com/image/4028383/photo-image-nature-horseFree Image from public domain licenseFossil Ridge Trail (Backbone Trail). As the trail's name indicates, fossil can be easily seen here on this segment of the… https://www.rawpixel.com/image/3399695/free-photo-image-animal-archaeology-backbone-trailFree Image from public domain licenseGreat horned owl at ADDO National Park. Original public domain image from Flickr https://www.rawpixel.com/image/4057200/image-public-domain-bird-animalFree Image from public domain licenseLeaves of a wild plant growing in soil. Watercolour by E. Hargitt. https://www.rawpixel.com/image/13970601/leaves-wild-plant-growing-soil-watercolour-hargittFree Image from public domain licenseDiagram of nuclear division, Fig 1 in Introduction of The Germ-Plasm: A Theory of Heredity by August Weismann, London… https://www.rawpixel.com/image/14005989/image-paper-cartoon-plantFree Image from public domain licenseCedar WaxwingWe spotted this cedar waxwing perched on a tree at Sherburne National Wildlife Refuge in Minnesota.Photo by… https://www.rawpixel.com/image/4028862/photo-image-bird-summer-natureFree Image from public domain licenseBlue-winged teal in flightPhoto by Mike Budd/USFWS. Original public domain image from Flickr https://www.rawpixel.com/image/4028349/photo-image-bird-nature-2021Free Image from public domain licenseA pair of goldfinches in a treePhoto by Courtney Celley/USFWS. Original public domain image from Flickr https://www.rawpixel.com/image/4028963/photo-image-tree-plant-leafFree Image from public domain licenseWolf from the Canyon pack next to road near Norris taken from snowcoach through the glass window by Diane Renkin. Original… https://www.rawpixel.com/image/4038640/photo-image-animal-public-domainFree Image from public domain licenseSpecimen historiae plantarum. Plantae typis aeneis expressae / [Paul de Reneaulme]. https://www.rawpixel.com/image/13978389/image-paper-cartoon-flowerFree Image from public domain licenseFree dog holding red ball in its mouth while sitting on a woman's lap image, public domain animal CC0 photo. https://www.rawpixel.com/image/5918504/image-background-public-domain-personFree Image from public domain licenseWestern honey bee on common milkweedA western honey bee visiting common milkweed flowers.Photo by Courtney Celley/USFWS.… https://www.rawpixel.com/image/4028518/photo-image-flower-plant-beeFree Image from public domain licenseChimpanzees, most man like of the apes, Bronx Park, New York. by Underwood and Underwood https://www.rawpixel.com/image/14300242/image-face-person-manFree Image from public domain licenseHairy woodpeckerWe spotted this hairy woodpecker foraging in the trees. Photo by Courtney Celley/USFWS. https://www.rawpixel.com/image/9655072/photo-image-plant-tree-animalFree Image from public domain licenseAttic Red-Figure Statuette Kantharos Fragment (comprised of 2 joined fragments) by Onesimos https://www.rawpixel.com/image/14269995/photo-image-airplane-animal-public-domainFree Image from public domain licenseA turkey and cockerel set in natural surroundings. Etching by G. Altzenbach, 17th century. https://www.rawpixel.com/image/13996253/image-cartoon-art-patternFree Image from public domain licenseView of a Country House and Studies of Bushes and Foliage by Théodore Géricault https://www.rawpixel.com/image/14312771/view-country-house-and-studies-bushes-and-foliage-theodore-gericaultFree Image from public domain licenseElliott's Mill on Stockton Creek] / [Elliotts Office, Stockville by Carleton Watkins https://www.rawpixel.com/image/14327566/photo-image-animal-public-domain-birdFree Image from public domain license"Rocky" is seen leaving his family's cornfield with some of the profit in his mouth outside Humbolt, Iowa, Sept. 17, 2017. https://www.rawpixel.com/image/3259857/free-photo-image-agriculture-animal-canineFree Image from public domain license397th Engineer Battalion, HHC Medics teach combat lifesaving techniques. Original public domain image from Flickr https://www.rawpixel.com/image/3582728/free-photo-image-animal-apparel-armoredFree Image from public domain licenseAdelaar bovenop wapentrofeeën waaronder verschillende wapens (1500 - 1548) by Meester van 1515 and Meester van 1515 https://www.rawpixel.com/image/13779743/image-paper-cartoon-trophyFree Image from public domain license