He compared its situation to the reduction in numbers of American bison. European bison tend to be taller than American bison. European bison can crossbreed with American bison. Religion also played a big role in Native American bison hunting. He is the head portion of an American bison. Bison fibers refer to the soft undercoat of the American Bison. Flanking the steps are life size North American bison. Rimmed crater mounds may be used as wallowing sites for American bison. For two days, he traveled underground among throngs of American bison. The Henry Mountains are home to approximately 350 American bison. Hunters were hired to provide buffalo meat from the large herds of American bison. They were impressed by Fraser's designs showing a Native American and an American bison. Some later descriptions treat the European bison as conspecific with the American bison. NDSU's athletic symbol is a caricature of the American Bison. Efforts were starting to be made to save some wildlife, particularly the American bison.