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 Bears International Polar Bears International Polar Bears International (PBI) is a non-profit polar bear conservation organization. Their research, education, and action programs address the issues that are endangering polar bears. The organization also tracks the activity of polar bears, primarily in Canada, which has helped lead to the animals being listed as an endangered species. Their Chief Scientist is Steven Amstrup, who was awarded the Indianapolis Prize in 2012. In partnership with Google, polar bear habitats in Churchill were added to Google Maps in February 2014. PBI also worked with the Association of Zoos and Aquariums to create education programs regarding polar