Sadly the buffalo have gone from most of the plains but they are gradually being reintroduced by various environmental groups and indeed are being ranched in some areas. However many other species of wildlife still remain in substantial numbers. Wild horses are present in many areas and. vast herds of pronghorn antelope, over 750,000 of them, still roam the prairies. They can be seen grazing on the roadside ranges like herds of cattle .White tail deer and mule deer are found all over, while moose and elk are common in the foothills and mountain meadows. Grizzlies and black bear are found in the national parks and even the wolf has recently been successfully re established in Yellowstone.
Mountain lions are all over, although difficult to see and coyotes are common in lots of places.
Other smaller mammals that can be spotted are porcupine, red fox, beaver and bobcat.