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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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 in Alaska train hikers for planned encounters with grizzlies bears fish for salmon.
Explore the delicate balance of the interconnected lives of bears, trees, and salmon.
Northwest Montana: wildest country left
Scientists, farmers, fishermen and nuns unite to save Mexico's rare aquatic salamanders.
Animals evolved amazing senses - now we're learning to adapt them for ourselves.
Scientists take inspiration from nature to create smarter, safer and more efficient gear.
The restoration of forest land in the British Isles helps revive the goshawk.
Men try to protect unique 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.
Doug Peacock, wildlife and his conservation crusade
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 the mountains, coastlines, gorges and inland waterways of Ireland.
The Galapagos Islands and filming by D. Plage
Plentiful fish draw birds to the Galapagos Islands man's actions, past and present, affect wildlife.
A variety of marine life thrives in and about the cold waters surrounding the Galapagos Islands.
Theories suggest how animals first migrated to the Galapagos Islands and how adaptation resulted in new species.
Chimpanzees and other primates survive on Tiwai, an Upper Guinea island where witchcraft and taboos exist today.
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