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Nature
How do Bulls Battle over Mates?
This time of year, bulls are competing for the right to breed. They display their fitness in the most dramatic fashion.
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53:59
The story of legendary tigers of India told by a man who’s devoted his life to keeping them alive.
53:33
At Reteti Sanctuary, caretakers prepares to release their oldest orphans into the wild.
53:33
In northern Kenya, a remarkable conservation experiment is unfolding at Reteti Sanctuary.
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51:54
Animal parents must balance risk and reward to raise their young in grasslands.
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53:24
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.