When the ice in Hudson Bay melts each spring, northern Ontario becomes home to nearly a thousand polar bears, but scientists are noticing extreme weight loss among that population. Between 1984 and 2009, the average weight of a male polar bear in the region dropped by 45 kilograms, while females were 31 kilograms lighter. A shorter freeze-up season means less time to access vital food sources, and that puts Ontario's polar bear population at risk.
Aired:
Apr 13, 2019
Show Comments
