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The Dark: Nature's Nighttime World

Episode 3: Patagonian Mountains

Duration: 59 minutes

on BBC Two HD

The expedition culminates in South America, where the nocturnal hunting behaviour of the puma is filmed, and a vampire bat's feeding secrets are revealed. Show more

BBC Two HD

About BBC Two

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.