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Secret Life Underground
The underground world is a largely unexplored universe.
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Season 1 Episode Guide See All
Episode 1
Part 1: The Skin of the Earth
51 mins
We know less than 10% of the organisms that populate the underground world and that, each in their own way, take an active part in creating the soil. We are just beginning to discover that plants form partnerships and create complex unions. Welcome to this subtle, surprising and secret world.