Watch what polar bears resort to eating when there's no sea ice for hunting
In a new study tracking the lives of polar bears near Churchill, Man., researchers aimed to find out what they live on during the summer. Some conserved energy while others scrambled for food, but nearly all lost weight — raising concerns about starvation risks in the future as sea ice declines.
![Watch what polar bears resort to eating when there's no sea ice for hunting](https://i.cbc.ca/1.7112907.1707771272!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/polar-bear-swimming.jpg)
![A video collar captures a polar bear swimming in Hudson Bay near Churchill, Man., as part of a study led by the U.S. Geological Survey tracking what polar bears eat and how much energy they spend when there's no sea ice. A polar bear's head is visible above the water as it swims in Hudson Bay near Churchill, Man.](https://i.cbc.ca/1.7112907.1707771272!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/polar-bear-swimming.jpg)
In a new study tracking the lives of polar bears near Churchill, Man., researchers aimed to find out what they live on during the summer. Some conserved energy while others scrambled for food, but nearly all lost weight — raising concerns about starvation risks in the future as sea ice declines.