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NOVA
Ancient Earth: Frozen
Season 50
Episode 12
700 million years ago, Earth was a giant snowball cloaked in ice from pole to pole. How did life manage to hold on through this deadly deep freeze, find creative ways to bounce back, and thrive in the dramatically different world that emerged?
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How did Earth give rise to humans? See what made our species' existence possible.
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How did life bounce back after a cataclysmic extinction wiped out some 90% of all species?
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See how life made the leap to land, turning a barren landscape into a lush, green world.
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See how Earth transformed from a barren hellscape to a planet capable of sustaining life.
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