Richard Garriott's Cabinet of the Universe, Part 3: Life Begins

Life first began on Earth in a carbon dioxide–rich atmosphere. Plants evolved that can still be found today. But when oxygen started building up, that emergent life got into trouble.

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Eliene Augenbraun is a multimedia science producer, formerly Nature Research's Multimedia Managing Editor and Scientific American's senior video producer. Before that, she founded and ran ScienCentral, an award-winning news service providing ABC and NBC with science news stories. She has a PhD in Biology.

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