Akpatok Island has been designated by the Canadian Wildlife Service as a special protection site. It's a favorite summering ground for polar bears, the Artic incarnation.The Ursus maritimus, or 'bear of the sea.' is the largest living land-based carnivore in the world. It shape, with a streamlined head and body, reflects it adaptation to swimming, it coarse outer fur and wooly underfur serve as a protection for the cold.Polar bears are not naturally aggressive against humans, but will attack if they feel threatened. Anyway, if one meets an adult male ( reaching nearly 11ft. in length - about the same as a compact car- and weighing up to 1800lb- a fair bit bigger than the largest grizzly ), it's strongly recommended to stand and not to stare at it !By far the most important prey for polar bears is the ringed seal, although they will also eat bearded, harp and hooded seals, as well as walruses, beluga whales and narwhals. They often catch the seals by 'still hunting', which involves lying next to a seal breathing hole in the ice, waiting for a seal to emerge. Worldwide, there are an estimated 30,000 polar bears of which about half live in Canadian territory. Theirs is not an endangered species, but is nonetheless highly protected by wildlife conservation legislation. In Canada, only Inuit and Indians are legally allowed to hunt polar bears, and they do so within an overall quota system.