'When the bear left, the dog seemed to be totally fine,' Semeniuk says. After that, the bear walked away to mosey around looking for food, leaving the dog unscathed. This seemingly benign behavior continued for about 15 minutes. It began nudging the canine with its nose and poking it with its paws the dog even appeared to be in on the bear's playful game. 'I was worried for the dog.'īut then, the bear started playing with the dog. 'I had no idea what was going to happen,' Semeniuk says. There Semniuk saw a chained-up sled dog-and a massive polar bear was approaching it. They visited a place called Mile 5 Sanctuary, outside the town of Churchill. When veterinary nurse Brittany Semeniuk went to Manitoba, Canada, in November, she and her vet partner were looking to photograph polar bears.