Elk sparring near the North Entrance. Original public domain image from Flickr https://www.rawpixel.com/image/4032546/photo-image-background-nature-mountainFree Image from public domain licenseBull bison sparring in the road. Original public domain image from Flickr https://www.rawpixel.com/image/4032768/photo-image-background-nature-landscapeFree Image from public domain licenseYoung bull elk test each other's mettle at the U.S. Fish & Wildlife Service's elk refuge in Jackson Hole, Wyoming, a valley… https://www.rawpixel.com/image/582790/carol-highsmiths-wyoming-photographFree Image from public domain licenseU.S. Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa practice landings MV-22B Ospreys at… https://www.rawpixel.com/image/3315362/free-photo-image-6th-marine-regiment-africa-africomFree Image from public domain licenseBull bullfighting livestock animal. https://www.rawpixel.com/image/13261837/bull-bullfighting-livestock-animalView licenseBull bullfighting livestock mammal. https://www.rawpixel.com/image/13261743/bull-bullfighting-livestock-mammalView licenseBull architecture arena entertainment. AI generated Image by rawpixel. https://www.rawpixel.com/image/13090159/bull-architecture-arena-entertainment-generated-image-rawpixelView licenseBull bullfighting bullfighter livestock. AI generated Image by rawpixel. https://www.rawpixel.com/image/13090464/bull-bullfighting-bullfighter-livestock-generated-image-rawpixelView licenseBull architecture bullfighting bullfighter. AI generated Image by rawpixel. https://www.rawpixel.com/image/13090130/bull-architecture-bullfighting-bullfighter-generated-image-rawpixelView licenseThe death. The fight is over. The white cock has given up and is about to die. Puerto Rico. Sourced from the Library of… https://www.rawpixel.com/image/12322522/image-person-animal-public-domainFree Image from public domain licenseThe beginning of the cock fight. When the man in the center raises the cloth, the birds will see each other and begin to… https://www.rawpixel.com/image/12322881/image-people-animal-public-domainFree Image from public domain licenseAmerican military delegation calling on Haile Selassie. With his pet dog, Bull, alertly resting at his side, His Majesty… https://www.rawpixel.com/image/12306540/image-dog-face-frameFree Image from public domain licenseCattle livestock mammal animal. AI generated Image by rawpixel. https://www.rawpixel.com/image/12014013/photo-image-background-cow-animalView licenseU.S. Marines with Special-Purpose Marine Air-Ground Task Force-Crisis Response-Africa and U.K. Royal Marines with 45… https://www.rawpixel.com/image/8739631/photo-image-public-domain-blue-oceanFree Image from public domain licenseMembers of the 87th Flying Training Squadron celebrated the squadron’s centennial at Laughlin Air Force Base, Texas, Aug.… https://www.rawpixel.com/image/8741386/photo-image-airplane-public-domain-peopleFree Image from public domain licenseU.S. Air Force T-38 Talons from Laughlin Air Force Base’s 87th Flying Training Squadron perform an aerial formation flight… https://www.rawpixel.com/image/8727866/photo-image-airplane-public-domainFree Image from public domain licenseSpanish bullfighting performance, location unknown, 9 April 2017. View public domain image source here https://www.rawpixel.com/image/6111839/photo-image-public-domain-people-freeFree Image from public domain license