NOVA

Ancient Earth: Frozen

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?

Ancient Earth: Frozen

53m 46s

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?

Previews + Extras

  • How Life Survived When Earth Was Covered in Ice: asset-mezzanine-16x9

    How Life Survived When Earth Was Covered in Ice

    S50 E12 - 3m 6s

    Seven-hundred-million years ago, ice threatened to make our planet uninhabitable, snuffing out new complex life forms. From this climate catastrophe, new forms of life arose, eventually leading to the living world today. But it was a close call.

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