Ancient Oceans S1E1: The Ordovician

Aired: 2019-11-04
Runtime: 10 minutes

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Overview

For nearly 4 billion years, the continents of Earth were a lifeless wasteland. But beneath the sea, our planet was teeming with life. Many strange creatures evolved, from eel-like conodonts to voracious cephalopods, until nearly all life was wiped out in our planet's first mass extinction.

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