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Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:35
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Overview

Who's Stealing the Water from the Rainforest?

Season 3 Episode 6

In Costa Rica’s cloud forest, a biological paradox unfolds: one of America’s wettest ecosystems is dying of thirst. Our investigation follows daring ecologists as they scale 70-foot canopies to solve this high-altitude "whodunit."

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