Bison walking in the early morning through the snow, Elk Island National Park; Alberta, Canada PacificStock
An Orca Whale (Killer Whale) (Orcinus orca) surfaces in Lynn Canal, Herbert Glacier, Inside Passage; Alaska, United States of America PacificStock
A bird flies above trees under a cloudy sky and fog on the coast of Resurrection Bay, South-central Alaska; Seward, Alaska, United States of America PacificStock
Polar bear (ursus maritimus) along the Hudson Bay coastline waiting for the bay to freeze over; Churchill, Manitoba, Canada PacificStock
Southern Elephant Seal (Mirounga leonina) looking up with mouth open, Neko Harbour, Antarctic Peninsula; Antarctica PacificStock
Brown bear (ursus arctos) chasing fish, Katmai National Park; Alaska, United States of America PacificStock
Mackerel Scad (Decapterus macarellus) schooled off the Kona coast; Kona, Island of Hawaii, Hawaii, United States of America PacificStock
Polar bear (ursus maritimus) along the Hudson Bay coastline waiting for the bay to freeze over; Churchill, Manitoba, Canada PacificStock
Two male Orca Whales, or Killer Whales, (Orcinus orca) surface near Juneau in Lynn Canal, Inside Passage; Alaska, United States of America PacificStock
Chinstrap Penguin (Pygoscelis antarctica) on belly; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Chinstrap Penguin (Pygoscelis antarctica) in a snowfall; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Chinstrap Penguin (Pygoscelis antarctica) in a snowfall; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Chinstrap Penguin (Pygoscelis antarctica); Half Moon Island, South Shetland Islands, Antarctica PacificStock
An elk (Cervus canadensis) standing in a field of snow with frozen trees in the background PacificStock
Chinstrap Penguin (Pygoscelis antarctica) with it's head cocked to the side; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Alaska Peninsula Brown Bear (ursus arctos horribilis) and it's cub walking to the edge of a lake on a foggy morning, Lake Clark National Park; Alaska, United States of America PacificStock
Close up of a brown bear (ursus arctos) in the snow, captive at the Alaska Wildlife Conservation Center; Portage, Alaska, United States of America PacificStock
A dropped Iditarod sled dog howls at the Finger Lake checkpoint during the 2013 Iditarod, Southcentral Alaska PacificStock
USA, Reticulated Brittle Star (Ophiocoma Brevipes) On Cushion Starfish (Culcita Novaeguineae); Hawaii PacificStock
Grizzly bear (Ursus arctos) fishing for sockeye salmon at Brooks Falls in Katmai National Park & Preserve, Southwest Alaska; Alaska, United States of America PacificStock
Grizzly bear (Ursus arctos) fishing for sockeye salmon at Brooks Falls in Katmai National Park & Preserve, Southwest Alaska; Alaska, United States of America PacificStock
Noah Burmeister runs up hill after leaving Puntilla Lake and the Rainy Pass Checkpoint during Iditarod 2016, Alaska. PacificStock
Chinstrap Penguin (Pygoscelis antarctica); Half Moon Island, South Shetland Islands, Antarctica PacificStock
Bull moose (alces alces) in a frosty field in autumn at sunrise on a cold morning, South-central Alaska; Anchorage, Alaska, United States of America PacificStock
Large Bighorn ram (ovis canadensis) kneeling down into blowing snow, Shoshone National Forest; Wyoming, United States of America PacificStock