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NOVA | Promotion | Polar Extremes Preview

Following a trail of fossils found in all the wrong places–beech trees in Antarctica, redwoods and hippo-like mammals in the Arctic–NOVA uncovers the bizarre history of the poles, from miles-thick ice sheets to warm polar forests teeming with life.

S47 E1 | 0:03:19 | AIRED: 2/5/2020 |
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