Bears, Moose, and an endless wilderness: The Gates of the Arctic national park in the north of Alaska is one of the last untamed places on our planet.

Originally released by National Geographic Digital Media, 2011. Streaming video file encoded with permission for digital streaming by Infobase on May 17, 2017.

Gates of the Arctic—Introduction (5:53); --Fall in the Park (4:21); -- Polar Bears and Musk Ox (3:43); -- Hibernation (5:30); -- Spring in the Park (3:58); -- Summer Arrives (6:51); -- Teaching Cubs (5:29); -- Search for Food (2:18); -- Mating Season (2:56); -- Approaching Winter (3:07); -- Polar bear with young (2:54); .