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Original from the Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/561709/tawny-owl-vintage-styleFree Image from public domain licenseA chipmunk or ground squirrel assumes an upright stance. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/422062/free-photo-image-squirrel-curious-animalsFree Image from public domain licensePNG Alert train locomotive vehicle. 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Coloured etching. https://www.rawpixel.com/image/13951503/image-horses-cartoon-peopleFree Image from public domain licensePortrait of George de Ligne Gregory (1740 - 1822) by John Russell https://www.rawpixel.com/image/14259395/portrait-george-ligne-gregory-1740-1822-john-russellFree Image from public domain licenseA U.S. Coast Guard HH-65C Dolphin helicopter from Coast Guard Air Station Atlantic City takes off during a three-day… https://www.rawpixel.com/image/3583456/free-photo-image-169th-fighter-wing-177th-1st-air-forceFree Image from public domain licenseU.S. Coast Guard HH-65C Dolphin helicopters from Coast Guard Air Station Atlantic City are prepared for a mission during a… https://www.rawpixel.com/image/4035664/photo-image-person-public-domainFree Image from public domain licenseBusts of Two Sisters: Bust of Mme. Brigitte François Elisabeth de Lansire, née Garnier d'Isle; Bust of Mme. Adélaïde Julie… https://www.rawpixel.com/image/14260590/photo-image-face-person-artFree Image from public domain licenseTwo St. Bernard dogs with an avalanche victim, one tries to revive him while the other alerts the rescue party. Line… https://www.rawpixel.com/image/13960056/image-dog-person-artFree Image from public domain licenseLong-nosed Leopard LizardA long-nosed leopard lizard (Gambelia wislizenii) standing, alert, on the ground. Photo: NPS /… https://www.rawpixel.com/image/9654633/photo-image-plant-animal-public-domainFree Image from public domain license10th Mountain Division Soldiers participate in teams in the annual D-Series winter challenge. 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