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Nature
The Biggest Threat to Bighorn Sheep
Bighorn sheep are quickly depleting in number due to a fatal bacteria that spreads like wildfire among herds. Discover the cause of this epidemic that is threatening this icon of the American west.
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53:10
NATURE enters the secret world of the harpy eagle.
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What happens to nature after a nuclear accident?
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52:30
The strange and spectacular birds of paradise.
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53:10
The true story that inspired "Born Free".
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Azzam Alwash is making an effort to return life to the paradise he remembers.
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A look back at this remarkable animal.
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52:59
Scientists aim to change the public perception of one of Africa's most dangerous snakes.
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53:10
Florida's Everglades National Park is home to a growing number of Burmese pythons.
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53:10
In Yellowstone National Park, two predators reign supreme: the grizzly bear and the wolf.
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53:11
CINE Golden Eagle Award Winner: Hummingbirds spend most of their lives in fast forward.
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53:10
The black mamba is one of Africa's most dangerous and feared snakes.
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53:10
The returning saga of Cloud, the wild stallion.