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Nature
Finding the Elusive White-Tipped Sicklebill
The white-tipped sicklebill is one of Costa Rica's most elusive hummingbirds. Filmmakers turned to Costa Rican expert Anthony Jimenez to help them locate and film the bird.
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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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Follow a female mountain lion in the Montana mountains over the course of a decade.
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See how the Arctic’s most enigmatic animals are coping as the sea ice melts.