The ends of the earth -- The Arctic and tundra -- The Antarctic -- Life in the Antarctic Ocean -- Migrants and residents -- Adaptable animals -- Survival of the fittest -- Birds of the Arctic -- Birds of the Antarctic -- Hunters of the skies -- Ocean wanderer -- South Pole penguins -- Emperors of the Antarctic -- King of the Arctic -- The mighty moose -- Tundra wildlife -- Reindeer and caribou -- Company of wolves -- The weighty walrus -- Suited to the sea -- Giants of the seas -- A herding life -- Hunters of the north -- Discovering the Arctic -- Scott and the Antarctic -- Keeping warm and safe -- Polar travel -- Life at the poles -- Last frontiers.