Fall Creek, Ithaca, N.Y. 2d, or Forest Fall, 60 feet high, from the dam by J.C. Burritt https://www.rawpixel.com/image/9013384/photo-image-plant-tree-artFree Image from public domain licenseFree robin bird portrait in nature background photo, public domain animal CC0 image. https://www.rawpixel.com/image/5906378/photo-image-background-public-domain-natureFree Image from public domain licenseThe Great Stock Yard, Chicago, Ill., U.S.A. by Benjamin West Kilburn https://www.rawpixel.com/image/14295470/the-great-stock-yard-chicago-ill-usa-benjamin-west-kilburnFree Image from public domain licenseZebra swallowtail butterfly on butterfly milkweedWe spotted this zebra swallowtail butterfly on butterfly milkweed at Mingo… https://www.rawpixel.com/image/4028201/photo-image-flower-plant-butterflyFree Image from public domain licenseSpecimen historiae plantarum. Plantae typis aeneis expressae / [Paul de Reneaulme]. https://www.rawpixel.com/image/13982281/image-paper-cartoon-flowerFree Image from public domain licenseUnidentified man wearing a hat on horseback near a bridge by A S Hinckley https://www.rawpixel.com/image/14306831/unidentified-man-wearing-hat-horseback-near-bridge-hinckleyFree Image from public domain licenseRock crushing machine (?), at either Augusta or Columbus, Georgia by Tucker and Perkins https://www.rawpixel.com/image/14299053/image-horse-person-artFree Image from public domain licenseTables of the skeleton and muscles of the human body ... / Translated from the Latin. https://www.rawpixel.com/image/13999031/image-cartoon-person-artFree Image from public domain licenseA treatise on corns, bunions, the diseases of nails, and the general management of the feet / By Lewis Durlacher. https://www.rawpixel.com/image/13986187/image-dog-cartoon-handFree Image from public domain licenseWestern Hognose SnakeWe spotted this western hognose snake basking on a road at Sherburne National Wildlife Refuge in… https://www.rawpixel.com/image/4029048/photo-image-person-summer-natureFree Image from public domain licensePepperweed (Lepidium montanum var. jonesii)Credit: NPS/Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4034362/photo-image-flower-plant-beeFree Image from public domain licenseDragonfly, macro photography, wild insects. Original public domain image from Flickr https://www.rawpixel.com/image/8732004/photo-image-public-domain-animalFree Image from public domain licenseBones of the arm and hand: three figures. Lithograph by Wieller and Martelli after Squanquerillo, 1838. https://www.rawpixel.com/image/13956291/image-cartoon-hand-personFree Image from public domain licenseTraill's Flycatcher Female & Young, Malheur NF 1938.JPG. Original public domain image from Flickr https://www.rawpixel.com/image/4075612/photo-image-bee-bird-forestFree Image from public domain licenseBull elk in springBull elk losing winter fur with velvet antlers near Phantom Lake by Jim Peaco. Original public domain… https://www.rawpixel.com/image/4039127/photo-image-plant-animalFree Image from public domain licenseAmerican Globeflower - rollius albiflorus by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038441/photo-image-flower-plant-beeFree Image from public domain licenseChlaenis harpalinus (top view)NPS PhotoUSA: Montana, Park CountyYellowstone NP Gardiner BasinPitfall Trap Ele. 162023 Aug -… https://www.rawpixel.com/image/4038129/photo-image-animal-public-domainFree Image from public domain licenseFree honey bee collecting nectar from a flower image, public domain animal CC0 photo. https://www.rawpixel.com/image/5901178/photo-image-background-flower-public-domainFree Image from public domain licenseA Wood Train, Oxen Power, California. by Underwood and Underwood https://www.rawpixel.com/image/14304530/wood-train-oxen-power-california-underwood-and-underwoodFree Image from public domain licenseA groom is holding a horse by its reins while a man man with a stick is pointing out parts of the horse's anatomy to… https://www.rawpixel.com/image/13994873/image-paper-horse-cartoonFree Image from public domain licenseCalathus advena (top view)NPS PhotoUSA: Wyoming, Park County:Yellowstone NP WASH SouthPitfall Trap, Ele. 2577m27 June 2018… https://www.rawpixel.com/image/4038139/photo-image-animal-public-domainFree Image from public domain licenseA drive in Wonderland, Niagara, U.S.A. by Benjamin West Kilburn https://www.rawpixel.com/image/14295465/drive-wonderland-niagara-usa-benjamin-west-kilburnFree Image from public domain licenseRagguaglio degl'esperimenti ... circa la nuova operatione della trasfusione del sangue da individuo ad individuo, ed in… https://www.rawpixel.com/image/13963581/image-paper-cartoon-personFree Image from public domain licenseBeast and man in India : a popular sketch of Indian animals in their relations with the people / by John Lockwood Kipling. https://www.rawpixel.com/image/13987343/image-paper-cartoon-faceFree Image from public domain licenseRoman Forum, taken from the Farnesi Gardens by Giorgio Sommer https://www.rawpixel.com/image/14272453/roman-forum-taken-from-the-farnesi-gardens-giorgio-sommerFree Image from public domain licenseYellowstone River dace by Jay Fleming. Original public domain image from Flickr https://www.rawpixel.com/image/4039139/photo-image-ocean-plant-natureFree Image from public domain licenseFirst bison calf sighting in 2019, near Gardner River by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038852/photo-image-lion-animalFree Image from public domain licenseA male lion looks out across the savannah inside the Ol Kinyei Conservancy in Kenya's Maasai Mara https://www.rawpixel.com/image/8811986/photo-image-public-domain-nature-lionFree Image from public domain licenseA brown bear sow with two spring cubs Photo courtesy M. WhalenA brown bear sow with two spring cubs. https://www.rawpixel.com/image/4031704/photo-image-animal-public-domainFree Image from public domain licensePresident Barack Obama signs items backstage following his remarks at the Palais Des Beaux Arts in Brussels, Belgium, March… https://www.rawpixel.com/image/4050177/photo-image-wood-person-roomFree Image from public domain licenseHorse Shoe Falls from Canada side, Niagara N.Y. by Charles Bierstadt https://www.rawpixel.com/image/14288100/horse-shoe-falls-from-canada-side-niagara-ny-charles-bierstadtFree Image from public domain licenseSteamer No. 1, Hose Tower, Pride of the Nation, Newburyport, Mass. by Selwin C Reed https://www.rawpixel.com/image/14297133/photo-image-horse-person-animalFree Image from public domain licenseOlympic more fungus USDA Forest Service photo by Betsy Howell. Original public domain image from Flickr https://www.rawpixel.com/image/4075815/photo-image-plant-ocean-birdFree Image from public domain licenseStanding giraffe in Nairobi, Kenya. (Official White House Photo by Andrea Hanks). Original public domain image from Flickr https://www.rawpixel.com/image/4049177/photo-image-plant-natureFree Image from public domain licenseColletes phaceliae, f, side, Pennington Co, SD_2016-02-02-11.23Colletes phaceliae, the Phacelia Cellophane Bee, is primarily… https://www.rawpixel.com/image/4038274/photo-image-bee-butterflyFree Image from public domain licenseKauterskill Falls - From Below the Second Fall. by Edward Anthony https://www.rawpixel.com/image/14285415/kauterskill-falls-from-below-the-second-fall-edward-anthonyFree Image from public domain licenseMan on Horseback with Dark Trees and Light Sky by Louis Fleckenstein https://www.rawpixel.com/image/14281546/man-horseback-with-dark-trees-and-light-sky-louis-fleckensteinFree Image from public domain license