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Secrets of the Dead show's poster

Hidden in the Amazon

Secrets of the Dead is part detective story, part true-life drama that unearths evidence from around the world, challenging prevailing ideas and throwing fresh light on unexplained events.

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Hidden in the Amazon

Season 20 Episode 4 | 55m 15s | CC

Recent discoveries and technological advances are shedding new light on our understanding of pre-Columbian societies in the Amazon. Scientists speculate the rainforest was home to between 8 and 10 million people living in large, well-established communities.

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