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800 million years ago, the giant supercontinent Rodinia breaks up. Earth's tectonic forces rip the land apart, kicking off a series of events that sends temperatures plummeting.
Chris Packham explores one of the darkest periods in Earth's history: the worst mass extinction the planet has ever seen, when as much as 90% of all species died.
Chris Packham tells the miraculous story of how plant life turned Earth from a barren rock into a vibrant green world.