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The Last Time the Globe Warmed

Season 1 Episode 22 | 9m 54s

Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well there was a time -- and not too long ago -- when the world warmed more than any human has ever seen. (So far)

Aired: 12/03/17
Extras
Get ready for the all-new season, coming January 17, 2027 at 9/8c.
The cast play a game of "What's in the vet bag?" with sentimental props from the series.
Celebrate the legacy of Gene Wilder, the actor behind Willy Wonka and Young Frankenstein.
Explore the site of the Battle of Camden and its importance to the American Revolution.
Formerly enslaved Americans formed Britain's Colonial Marines unit and marched on Washington, D.C.
The search for a sunken fort uncovers a powerful freedom story.
Tangier Island's lawns are turning into marshes. Can oyster reefs help?
Scientists race to save the historic island on the Chesapeake Bay from rising sea levels.
Sheléa performs "MacArthur Park" in this retrospective concert for Jimmy Webb.
Jimmy Webb, Vince Gill, Lyle Lovett and Ashley Campbell perform "Highwayman."
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The first saber-teeth and tusks evolve in the Late Permian and our ancestors, the cynodonts, appear.
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An extinction in the Middle Permian decimates life, from a fossil reef to our ancient relatives.
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