Davina Mccall: Life at the Extreme: Svalbard - Cold

Davina travels to the Norwegian archipelago of Svalbard in the Arctic Circle, a harsh environment set across 15 million sq km of sea ice where temperatures can drop to -40C. She learns how huskies' thick fur is better insulation than goose down, that the deep pads on their paws protect them from the cold and their almond shaped eyes mean they are less exposed in a blizzard. She also tracks a polar bear to the open sea and witnesses bearded seals using their whiskers like feelers to find shrimp and crab on the ocean floor