nova
Polar Extremes

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

Episode Duration: 1 hour 55 minutes and 47 seconds

Episode Number: 4701


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Sun, May 16 4:00 P.M. Fighting for Fertility     NHPBS
Sun, May 16 10:00 P.M. Fighting for Fertility     NH EXPLORE
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Wed, May 19 9:00 P.M. Hindenburg: The New Evidence     NHPBS
Thu, May 20 1:00 A.M. Hindenburg: The New Evidence     NH EXPLORE
Thu, May 20 4:00 A.M. Hindenburg: The New Evidence     NHPBS
Thu, May 20 12:00 P.M. Hindenburg: The New Evidence     NH EXPLORE
Thu, May 20 2:00 P.M. Bigger Than T.rex     NH WORLD
Thu, May 20 7:00 P.M. Hindenburg: The New Evidence     NH WORLD

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