A lone bison (bison bison) grazes on the buttes of Grasslands National Park; Saskatchewan, Canada 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
A moose (alces alces) forages on a winter morning with the Alaska Range in the background partially enshrouded in clouds; Alaska, United States of America PacificStock
A hiker on a ridge in Denali National Park is dwarfed by Denali at sunrise in winter; Alaska, United States of America PacificStock
Grizzly bear (ursus arctos horribilis) looking for fish at sunrise in Ni'iinlii Njik (Fishing Branch) Territorial Park; Yukon, Canada PacificStock
Grizzly bear (ursus arctos horribilis) looking for fish at sunrise in Ni'iinlii Njik (Fishing Branch) Territorial Park; Yukon, Canada PacificStock
Young Grizzly cub (ursus arctos horribilis) walking across a log in Ni'iinlii Njik (Fishing Branch) Territorial Park; Yukon, Canada PacificStock 11
Polar bear (ursus maritimus) laying alongside a thawing pond waiting for Hudson Bay to freeze over; Churchill, Manitoba, Canada PacificStock
Female Ice Climber Rappels Into The Head Of Maligne Canyon In Jasper National Park, Alberta, Canada PacificStock