Mammals of Yellowstone National Park
The 5 mammals you can find at Yellowstone National Park, like the American bison — sizes, diets, and whether you should worry.
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Mammal American bison
Bison bison
The biggest land animal in North America, a shaggy grazer of the plains you can watch cross the road in Yellowstone.
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Mammal Coyote
Canis latrans
The wild dog you're most likely to hear at a national park — a coyote, at home in the desert, the mountains, and the edges of towns.
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Mammal Elk
Cervus canadensis
A large deer of mountain meadows whose bulls grow branching antlers and, each fall, bugle a high whistling call across the valley.
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Mammal Gray wolf
Canis lupus
The biggest wild dog in North America, a pack hunter you might hear howling at dawn in Yellowstone, Denali, or Isle Royale.
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Mammal Grizzly bear
Ursus arctos horribilis
A big brown bear of the northern Rockies and Alaska, marked by a hump of muscle over its shoulders and long digging claws.