Polar bear the fourhorn sculpin. With the exception of pregnant females, polar bears are active year-round, although they have a vestigial hibernation induction trigger in their blood. Unlike brown and black bears, polar bears are capable of fasting for up to several months during late summer and early fall, when they cannot hunt for seals because the sea is unfrozen. When sea ice is unavailable during summer and early autumn, some populations live off fat reserves for months at a time, as polar bears do not 'hibernate' any time of the year. Being both curious animals and scavengers, polar bears investigate and
Polar bear jail they are unable to hunt their primary prey - seals - and, suffering from the hunger, they approach the town and threaten the inhabitants. Also now on the Hudson bay shore and Churchill river there are signs warning "Polar Bear Alert", and a person noticing a polar bear can call the designated number and the workers of the Department of Natural Resources will come out and catch the bear. Polar bear jail Polar bear jail (also known as Polar Bear Holding Facility) is a special building in Churchill, Manitoba where polar bears that are considered troublesome or dangerous are isolated