SUNRISE EARTH: Polar Bears (clip 2)

In the remote Churchill region of Canada's Manitoba province, early winter lays a blanket of white over the barren tundra. Along with the fresh snow arrives a much larger white presence - the highest concentration of polar bears in the world. They've traveled for months to get here and they're starving, having lived primarily off their body fat. The mid-winter attraction is a frozen Hudson's Bay, full of seals and other favorite holiday meals. Anxiously, the bears wait for the ice to freeze. Soon, the short days will start getting longer. On this morning, they roam about and play-fight, observe and wait. They scent the winds that blow across the wide expansive plain during the long, red hours of the sub-artic dawn. SUNRISE EARTH: Polar Bears premieres on Thursday, December 21 at 10 PM on Discovery HD Theater.