Mammals of Wind Cave National Park
The 13 mammals you can find at Wind Cave National Park, like the American beaver — sizes, diets, and whether you should worry.
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Mammal American beaver
Castor canadensis
North America's largest rodent, a keystone species whose dams reshape whole streams at Yellowstone, Glacier, and ten other parks along the route.
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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 Black-footed ferret
Mustela nigripes
A masked, prairie-dog-hunting weasel declared extinct in 1979, brought back from a single Wyoming colony and now living wild again at Badlands and Wind Cave.
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Mammal Black-tailed prairie dog
Cynomys ludovicianus
A burrowing ground squirrel, not a dog. Its towns along Theodore Roosevelt's scenic loop mow the grass short and pull bison and pronghorn in to graze.
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Mammal Bobcat
Lynx rufus
A small wildcat about twice the size of a house cat, common but rarely seen, that can bring down prey many times its own weight.
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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 Little brown bat
Myotis lucifugus
A tiny brown flyer that hunts insects over water at dusk and sleeps in caves and barns, eating half its own weight in bugs each night.
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Mammal Mule deer
Odocoileus hemionus
A western deer named for its big mule-like ears, common along canyon rims and desert washes in Grand Canyon, Zion, Yosemite, and Saguaro.
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Mammal Northern flying squirrel
Glaucomys sabrinus
A nocturnal glider of old-growth conifer forests that eats mostly underground fungus and, under a UV light, glows bubblegum pink.
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Mammal Pronghorn
Antilocapra americana
North America's fastest land mammal, seen in Yellowstone's northern range and at Lava Beds, built to outrun a predator that went extinct 12,000 years ago.
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Mammal Townsend's big-eared bat
Corynorhinus townsendii
A soft brown bat with enormous curling ears that roosts in the cool lava-tube caves of Lava Beds and hunts moths in the dark.
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Mammal White-tailed deer
Odocoileus virginianus
The most common large mammal in eastern parks, running through the woods and waving a white tail like a flag when it bolts.