Danny Green / Polar bear (Ursus maritimus) sleeping in snow. Churchill, Manitoba, Canada, November.

Sebastian Kennerknecht / American Bison (Bison bison) female in snow, Riding Mountain National Park, Manitoba, Canada

Eric Baccega / Female Polar bear (Ursus maritimus) grooming, with two cubs playing nearby, Wapusk National Park, Manitoba, Canada, February.

Matthias Breiter / Polar Bear (Ursus maritimus) male resting on ice, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) male resting on ice, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) yearling cub, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) male, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) stretching, Hudson Bay, Manitoba, Canada

Matthias Breiter / Snow Goose (Chen caerulescens) flock flying over coastal flats, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) male, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) males fighting, Hudson Bay, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) juvenile, Hudson Bay, Manitoba, Canada