Bears of the Last Frontier
Ecologist Chris Morgan travels to northern Alaska in late fall to see polar bears.
Ecologist Chris Morgan travels to northern Alaska in late fall to see polar bears.
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Uncover the activity, both human and natural, that occurs on the slopes of volcanoes.
Several species adapt to life in Antarctica's subzero waters.
Alaska's icy landscape, humpback whales, grizzlies and the northern lights.
In the Iditarod Sled Dog race, the bond between mushers and their dogs is vital.
Dog trainers take unwanted dogs and train them to herd sheep and sniff bombs.
Hugo van Lawick explores relationships within a wild-dog pack in Africa's Serengeti plain.
Learn how the domestication of dogs might have taken place.
Ecologist Chris Morgan travels to northern Alaska in late fall to see polar bears.
Ecologist Chris Morgan explores the world of black bears.
Ecologist Chris Morgan camps among the largest concentration of grizzles in the world.
The rescue of the grizzly population of Yellowstone and ensuing social problems.
Rangers at Denali National Park train hikers for planned encounters with grizzlies.
Explore the delicate balance of the interconnected lives of bears, trees, and salmon.
Grizzlies, wolves and cougars roam Montana's rugged, pristine Glacier National Park.
How wildlife and animal life survive in the severe landscape of Death Valley.
Examine the plants and animals that have adapted to the harsh environment of the Kalahari.
Capture the interaction between the Kalahari Desert and the Okavango River delta.
Watch as the Kalahari swarms with life brought forth by a brief season of sudden storms.
Undisturbed the saguaro cactus can grow to 60 feet, weigh 10 tons and live 150 years.
Millions of years ago, the advance and retreat of ice shaped Ireland.
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