Mammals of Alaska
The mammals most often spotted in Alaska, ranked by recent research-grade observations.
Most-observed mammals in Alaska
Moose
Alces alces
8,127 observations
Brown Bear
Ursus arctos
4,622 observations
American Red Squirrel
Tamiasciurus hudsonicus
3,334 observations
Humpback Whale
Megaptera novaeangliae
2,927 observations
Sea Otter
Enhydra lutris
2,753 observations
Steller Sea Lion
Eumetopias jubatus
2,366 observations
Arctic Ground Squirrel
Urocitellus parryii
2,365 observations
Caribou
Rangifer tarandus
2,360 observations
American Black Bear
Ursus americanus
2,332 observations
Harbor Seal
Phoca vitulina
2,099 observations
Thinhorn Sheep
Ovis dalli
1,636 observations
Red Fox
Vulpes vulpes
1,627 observations
Snowshoe Hare
Lepus americanus
1,489 observations
Mule Deer
Odocoileus hemionus
1,323 observations
North American Porcupine
Erethizon dorsatum
1,269 observations
Orca
Orcinus orca
1,172 observations
American Beaver
Castor canadensis
1,040 observations
Mountain Goat
Oreamnos americanus
1,016 observations
Muskox
Ovibos moschatus
722 observations
Hoary Marmot
Marmota caligata
642 observations
North American River Otter
Lontra canadensis
507 observations
Gray Wolf
Canis lupus
478 observations
Coyote
Canis latrans
443 observations
Collared Pika
Ochotona collaris
438 observations
Muskrat
Ondatra zibethicus
415 observations
Canada Lynx
Lynx canadensis
407 observations
Dall's Porpoise
Phocoenoides dalli
371 observations
Elk
Cervus canadensis
300 observations
Beluga
Delphinapterus leucas
299 observations
Least Chipmunk
Neotamias minimus
289 observations
Wolverine
Gulo gulo
238 observations
Northern Red-backed Vole
Clethrionomys rutilus
237 observations · iNaturalist
American Marten
Martes americana
231 observations
American Mink
Neogale vison
214 observations
Polar Bear
Ursus maritimus
206 observations
Fin Whale
Balaenoptera physalus
180 observations
Arctic Fox
Vulpes lagopus
168 observations
Eurasian Stoat
Mustela erminea
167 observations
European Rabbit
Oryctolagus cuniculus
153 observations · iNaturalist
Domestic Horse
Equus caballus
128 observations · iNaturalist
American Bison
Bison bison
127 observations
Grey Whale
Eschrichtius robustus
117 observations
Harbour Porpoise
Phocoena phocoena
111 observations
Ringed Seal
Pusa hispida
88 observations · iNaturalist
Nearctic Brown Lemming
Lemmus trimucronatus
73 observations
Bowhead Whale
Balaena mysticetus
67 observations
Walrus
Odobenus rosmarus
59 observations
Tundra Vole
Alexandromys oeconomus
59 observations · iNaturalist
Little Brown Bat
Myotis lucifugus
49 observations
Masked Shrew
Sorex cinereus
49 observations