Bald Eagle (Haliaeetus leucocephalus) perched in a tree, Cowichan Bay; British Columbia, Canada PacificStock
Red fox (Vulpes vulpes) resting on melting snow on Arctic tundra, early spring, Arctic coastal plain, North Slope, Northern Alaska; Alaska, United States of America PacificStock
Portrait of a female Gray Wolf (canis lupus) looking up, captive, 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
Polar bear (ursus maritimus) walking through the snow and blizzard near Churchill; Manitoba, Canada PacificStock
Arctic fox (Vulpes lagopus) staring at the photographer while digging in the snow; Churchill, Manitoba, Canada PacificStock
CAPTIVE: Female Tundra Wolf in snow, Alaska Wildlife Conservation Center, Southcentral Alaska PacificStock
View of a Cross Fox hunting along the road in Thorofare Pass, Denali National Park; Alaska, United States of America PacificStock
Determined young woman dressed in a wool native-style costume standing in the fog in the middle of bones planted in the ground firmly holding her stick ready to defend her territory Artmood Visualz
A young Red-tailed Hawk watches for movement in the grass below; Ridgefield, Washington, United States of America PacificStock
Alert Cheetah (Acinonyx jubatus) stalking through open grassland near Ndutu, Ngorongoro Crater Conservation Area; Tanzania PacificStock