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Human
5/5 From the end of the dinosaurs to the rise of the planet’s most unlikely force: humanity. (R)
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Atmosphere
4/5 The almost implausible story of how our life-sustaining atmosphere came to exist. (R)
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Green
3/5 How plant life turned the Earth from a barren rock into a vibrant green world. (R)
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Snowball
2/5 Life’s existence hangs in the balance when the ancient Earth almost entirely freezes over. (R)
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Inferno
1/5 Chris Packham explores the dramatic moment nearly all life on Earth was wiped out. (R)