Cowboy having his morning coffee at the edge of a river with his horses, Ya-Ha-Tinda Ranch, Clearwater County; Alberta, Canada PacificStock
View of a Cross Fox hunting along the road in Thorofare Pass, Denali National Park; Alaska, United States of America PacificStock
Polar bears (ursus maritimus) sparring in the snow during winter near Churchill; Manitoba, Canada PacificStock
A dog stands on the beach at the edge of the surf; South Shields, Tyne and Wear, England PacificStock
Close up of a grizzly bear (ursus arctos horribilis) standing in colorful red blueberry bushes in autumn, Denali National Park; Alaska, United States of America PacificStock
A bull moose stands in the middle of Denali Park Road, in Denali National Park and Preserve, with the mountains in the background in autumn; Alaska, United States of America PacificStock
Arctic fox (Vulpes lagopus) staring at the photographer while digging in the snow; Churchill, Manitoba, Canada PacificStock
Detail of wild Jackson's Chameleon (Trioceros jacksonii) on Ironwood tree twig; Big Island, Hawaii, United States of America PacificStock
A young calf moose wanders through green grass; Palmer, Alaska, United States of America PacificStock
Polar bear (ursus maritimus) walking through the snow and blizzard near Churchill; Manitoba, Canada PacificStock
A dall sheep (ovis dalli) ram walking along the road on a warm spring day in Denali National Park; Alaska, United States of America PacificStock
Chinstrap Penguin (Pygoscelis antarctica) with it's head cocked to the side; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bears (Ursus arctos) gathered at Brooks Falls to fish for salmon, Brooks River, Katmai National Park, Southwest Alaska PacificStock
A Western Gull (Larus occidentalis) frolics in Ecola Creek; Cannon Beach, Oregon, United States of America PacificStock
Chinstrap Penguin (Pygoscelis antarctica); Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bear (Ursus arctos) cub standing in grass at edge of Brooks River in rain, while mother is fishing for salmon, Katmai National Park, Southwestern Alaska PacificStock
Chinstrap Penguin (Pygoscelis antarctica) in a snowfall; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bear (Ursus arctos) cubs standing upright on a grassy bank of Brooks River, Katmai National Park and Preserve, Southwest Alaska PacificStock
Large male polar bear (ursus maritimus) sitting in the willow bushes near Churchill; Manitoba, Canada PacificStock
Painted Lady Butterfly (Cynthia) feeds on goldenrod; Tahlequah, Oklahoma, United States of America PacificStock
Chinstrap Penguin (Pygoscelis antarctica) in a snowfall; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bear (Ursus arctos) cub sitting on grassy bank of Brooks River, Katmai National Park and Preserve, Southwest Alask PacificStock
Chinstrap Penguin (Pygoscelis antarctica) in a snowfall; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bear (Ursus arctos) cub close-up, standing in grass, Katmai National Park and Preserve, Southwest Alaska, USA PacificStock
A moose feeds in Two Moose Lake along the Dempster Highway, with the last light of the day lilluminating the freshly snow covered landscape; Yukon, Canada PacificStock
Chinstrap Penguin (Pygoscelis antarctica); Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bear (Ursus arctos) cub close-up, sitting in grass, Katmai National Park and Preserve, Southwest Alaska, USA PacificStock
Mother polar bear (ursus maritimus) and two cubs running through the water along Hudson Bay; Manitoba, Canada PacificStock
Chinstrap Penguin (Pygoscelis antarctica) on belly; Half Moon Island, South Shetland Islands, Antarctica PacificStock
Brown bear (Ursus arctos) cub close-up, lying in grass, Katmai National Park and Preserve, Southwest Alaska, USA PacificStock
Brown bears (Ursus arctos) fishing for sockeye salmon at Brooks Falls, Brooks River, Katmai National Park and Preserve, Southwest Alaska PacificStock
Chinstrap Penguin (Pygoscelis antarctica) on belly; Half Moon Island, South Shetland Islands, Antarctica PacificStock