Mature Black bear (Ursus americanus) walking over grass with peaked mountains in the background, captive at the Alaska Wildlife Conservation Centre; Portage, Alaska, United States of America PacificStock
Brown bear (ursus arctos) in the frosty grass, captive at the Alaska Wildlife Conservation Center; Portage, Alaska, United States of America PacificStock
Moraine Lake at sunset, Mendenhall Recreation Area, Tongass National Forest, near Juneau; Alaska, United States of America PacificStock
The Pool frozen over at sunrise in Central Park; New York City, New York, 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
Lone American Bison (bison bison) standing in snowy meadow with rugged cliffs in background, Shoshone National Forest; Wyoming, United States of America PacificStock
Snow-covered Glen Span Arch, Central Park; New York City, New York, United States of America PacificStock
Man riding a snowmachine up the Anaktuvuk River Valley at sunset, Gates of the Arctic National Park, Brooks Range, Arctic Alaska PacificStock
Fresh snow on holiday bow and decorations on fence post, Christmas season; Minnesota, United States of America PacificStock
A foggy sunset over the Arctic Ocean illuminates icebergs on a partly clear and calm evening; Barrow, North Slope, Alaska, United States of America PacificStock
The sun breaks through the clouds above the Takhini River on a late winter afternoon, near Whitehorse; Yukon, Canada PacificStock
Snow-covered Glen Span Arch, Central Park; New York City, New York, United States of America PacificStock
Aurora borealis over frozen Susitna River with Mt. Foraker and Mt. Hunter in the background. PacificStock
Polar bear (ursus maritimus) walking through the snow and blizzard near Churchill; Manitoba, Canada PacificStock