Close-up shot of polar bear and cub walking through rocky snow covered area

polar bears cub bears rocky snow covered marine mammal wildlife white fur nanook vulnerable species churchill manitoba canada remote ursidae snow landscape ursus maritimus bear snowy freezing animal predator mammalia white hudson bay nanuq carnivora countryside canadian outdoors hypercarnivorous polar bear ursus wild fauna canadian countryside wilderness nature winter carnivorous carnivore season cold outdoors mammal outside family