They are a majestic icon of Canada's North, but polar bears have also come to symbolize climate change. And scientists say the future for one particular population of polar bears in northern Manitoba is dire.
Correction: At 9:52 we mistakenly reported that there hasn't been a birth of polar bear triplets recorded since 1996. In fact, there have been triplet births observed in the spring – but no females with triplets have been seen in the fall.
