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 ecology 2002 Larsen B, which was , broke off. Global warming affects plants and animals. For plants, the warmer temperatures induce stress on the plants. For animals, there has been a decrease in the number of polar bears in the Hudson Bay area. Since 1981, the polar bear population has been declining. This is because global warming causes the ice to break up faster so the polar bears are going to the coasts when there are poor conditions. Whoever owns the land is responsible or managing it. And the owners of the land differ between the Antarctic and Arctic and also