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Polar bear (Ursus maritimus) walking over rocks, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) walking over rocks, near Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) smelling the air, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) smelling the air, near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) play fighting behind trees, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) play fighting behind trees, near Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) in shallow icy water, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) in shallow icy water, near Churchill, Manitoba, Canada
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Brown bear (Ursus arctos) cub climbing pole, Russia
Brown bear (Ursus arctos) cub climbing pole, Russia
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Polar bear (Ursus maritimus) playing with Husky dog, Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) playing with Husky dog, Churchill, Manitoba, Canada
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Immature Polar bear (Ursus maritimus) sticking head under water, near Churchill, Manitoba, Canada
Immature Polar bear (Ursus maritimus) sticking head under water, near Churchill, Manitoba, Canada
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Brown bear (Ursus arctos) cub scratching on boardwalk, Russia
Brown bear (Ursus arctos) cub scratching on boardwalk, Russia
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Polar bears (Ursus maritimus) starting playfighting, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) starting playfighting, near Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) group, playfighting, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) group, playfighting, near Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) and Husky dog (Canis lupus familiaris) interacting, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) and Husky dog (Canis lupus familiaris) interacting, near Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) playing with Husky dog, Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) playing with Husky dog, Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) interacting with Husky dog (Canis lupus familiaris), near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) interacting with Husky dog (Canis lupus familiaris), near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
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Brown bear (Ursus arctos) cub digging for ants, Russia
Brown bear (Ursus arctos) cub digging for ants, Russia
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Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) playfully biting each other, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) playfully biting each other, near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
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Brown bear (Ursus arctos) cub swimming in boggy pool, Russia
Brown bear (Ursus arctos) cub swimming in boggy pool, Russia
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Polar bear (Ursus maritimus) lying on back on snow, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) lying on back on snow, near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) play fighting, near Churchill, Manitoba, Canada
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Polar bear (Ursus maritimus) female backing off from male, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) female backing off from male, near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) play fighting behind trees, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) play fighting behind trees, near Churchill, Manitoba, Canada
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Polar bears (Ursus maritimus) lying on snow, flirting, near Churchill, Manitoba, Canada
Polar bears (Ursus maritimus) lying on snow, flirting, near Churchill, Manitoba, Canada