Mammals of Isle Royale National Park
The mammals most often spotted in Isle Royale, ranked by recent research-grade observations.
Most-observed mammals in Isle Royale
Moose
Alces alces
342 observations
American Red Squirrel
Tamiasciurus hudsonicus
130 observations
Snowshoe Hare
Lepus americanus
99 observations
Gray Wolf
Canis lupus
84 observations
Red Fox
Vulpes vulpes
76 observations
American Beaver
Castor canadensis
67 observations
North American River Otter
Lontra canadensis
28 observations
Eastern Deermouse
Peromyscus maniculatus
12 observations
American Marten
Martes americana
3 observations
Muskrat
Ondatra zibethicus
3 observations
Little Brown Bat
Myotis lucifugus
1 observation
American Ermine
Mustela richardsonii
1 observation · iNaturalist
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