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Scientist Profile - Tony Sinclair
Tony Sinclair arrived in the Serengeti in 1965, looking to study the wildlife. In the decades that followed, his work revealed the ecological rules that govern this majestic place and most other ecosystems on Earth.
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The mysterious eel is found all over the globe, in fresh and salt water ecosystems alike.
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One man's remarkable experience of raising a group of wild turkey hatchlings to adulthood.
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In Yellowstone National Park, two predators reign supreme: the grizzly bear and the wolf.
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CINE Golden Eagle Award Winner: Hummingbirds spend most of their lives in fast forward.