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Nature
How Wildebeest Saved the Serengeti
In the 1960s, ecologist Tony Sinclair made a breakthrough discovery when he observed a huge population surge of wildebeest in the Serengeti. He found that the wildebeest were the key to keeping the ecosystem balanced and that keystone species could be prey as well as predators.
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The story of legendary tigers of India told by a man who’s devoted his life to keeping them alive.
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At Reteti Sanctuary, caretakers prepares to release their oldest orphans into the wild.
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In northern Kenya, a remarkable conservation experiment is unfolding at Reteti Sanctuary.
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Animal parents must balance risk and reward to raise their young in grasslands.
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Follow the complex lives of giant elephant bulls in Amboseli and Mount Kilimanjaro.
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53:38
Follow a female mountain lion in the Montana mountains over the course of a decade.