shore
If you happen to be in the Arctic this summer polar bears (Ursus maritimus) can be spotted spending their time on the sea ice or on the shore in areas where ice has melted. While it is difficult to study the physiology of bears living on the ice, it had been hypothesized that bears living on shore experience a state similar to winter hibernation in which they attempt to decrease their energy expenditure when food resources are low. However, new research published in Science shows that bears living on the ice as well as those on shore experience some decrease in activity as well as body…