Mammals of Mount Rainier National Park
The 10 mammals you can find at Mount Rainier National Park, like the American black bear — sizes, diets, and whether you should worry.
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Mammal American black bear
Ursus americanus
The bear you're most likely to meet east of the Rockies, a strong tree-climber that eats mostly plants and comes in black, brown, or cinnamon.
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Mammal American pika
Ochotona princeps
A small round cousin of the rabbit that lives in mountain rock piles at Rocky Mountain, Mount Rainier, and North Cascades, and never sleeps through winter.
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Mammal Cascade red fox
Vulpes vulpes cascadensis
A rare, high-elevation red fox subspecies found almost nowhere but Mount Rainier's subalpine meadows, in red, black, or mixed cross-colored fur.
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Mammal Columbian black-tailed deer
Odocoileus hemionus columbianus
The coastal rainforest subspecies of mule deer, common on foggy meadow edges from Olympic to Redwood, easy to tell apart by its all-black tail.
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Mammal Douglas squirrel
Tamiasciurus douglasii
A small, loud tree squirrel of West Coast conifer forests, known for cutting green cones by the hundred and scolding every hiker who walks under its tree.
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Mammal Hoary marmot
Marmota caligata
The big silver-gray ground squirrel of the high meadows at Mount Rainier, famous for the sharp whistle it gives when danger is near.
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Mammal Mountain goat
Oreamnos americanus
A white, shaggy climber with black horns that lives on the steepest crags and pumice fields high on Mount Rainier, where almost nothing else can walk.
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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 Snowshoe hare
Lepus americanus
A forest hare whose coat flips from brown to white on a clock set by daylight, not by snow, and whose oversized feet work like actual snowshoes.
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Mammal Wolverine
Gulo gulo
The largest weasel-family member, so rare in Washington that a 2020 den at Mount Rainier was its first confirmed wolverine family in over a century.