Stock photography, photos: Polar bears sparring Stock photos of Two polar bears (Thalarctos maritimus) sparring - near Churchill, Manitoba, Canada Photograph: © James Hager Click for a larger image and more information Keywords associated with this stock photo: Polar Bear, Thalarctos maritimus, bear, Thalarctos, spar, sparring, fight, fighting, mammal, animal, wildlife, power, strength, arctic