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
Fresh snow on holiday bow and decorations on fence post, Christmas season; Minnesota, United States of America PacificStock
The Pool frozen over at sunrise in Central Park; New York City, New York, United States of America PacificStock
Moraine Lake at sunset, Mendenhall Recreation Area, Tongass National Forest, near Juneau; 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
Snow-covered Glen Span Arch, Central Park; New York City, New York, United States of America PacificStock
Polar bear (ursus maritimus) walking through the snow and blizzard near Churchill; Manitoba, Canada PacificStock
Southern Patagonian Ice Field; Torres del Paine, Magallanes and Antartica Chilena Region, Chile PacificStock
Aurora borealis over frozen Susitna River with Mt. Foraker and Mt. Hunter in the background. 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
An open pond in the winter with snow covered hilly banks, evergreen trees and bulrushes; Calgary, Alberta, Canada PacificStock
An unnamed glacier flows down from the Chugach Mountains towards Thompson Pass near Valdez; Alaska, United States of America PacificStock