Nature
The rescue of the grizzly population of Yellowstone and ensuing social problems.
The rescue of the grizzly population of Yellowstone and ensuing social problems.
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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.
The restoration of forest land in the British Isles helps revive the goshawk.
Protecting Brazilian animals and plants threatened by development of the Amazon jungle.
The human and natural histories of the Grand Tetons and Jackson Hole, Wyo., interlink.
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.
The Galapagos Islands and filming by D. Plage.
Fish draw birds to the islands man's actions, past and present, affect wildlife.
Marine life thrives in and about the cold waters surrounding the Galapagos Islands.
Explore the wildlife and natural history of Hong Kong.
The island Tiwai is home to one of the highest densities of primates in the world.
Madagascar tries to protect its ecosystem while preserving Malagasy traditions.
Explore Yosemite to discover how climate change affects the valley's majestic beauty.
Take an intimate look at one of the world's most intelligent and sensitive animals.
The fur trade continues to threaten the South American otter.
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