How Did This Butterfly Get So Old?

Extras

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  Megadroughts and Indigenous Voices

  The Southwest is in a megadrought, but Native Americans have survived them before.

  7:51
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  Standing the Heat

  Reintroducing the hogan, an earthen Navajo structure that stays cool in the summers without AC.

  8:44
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  Tides of Tradition

  Following a local Unangax̂ hunter, hear the realities of food access in the changing Arctic.

  9:47
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  Keepers of the Coastline

  In Northern California, Marine science is guided by Tolowa Dee-ni' Nation’s community and culture.

  11:56
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  Sands of Time

  Using photo archives and ancestral knowledge, witness coastal erosion in Bristol Bay, Alaska.

  6:47
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  What Did Dinosaurs in Alaska Eat During Winter?

  During the winter months, food for the plant eaters would have withered or died.

  2:36
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  This Rare Earth Metal Repels Sharks

  This is kryptonite for sharks. (2012)

  1:19
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  One of the Greatest Meetings of the Minds in History

  These scientists were the pioneers of quantum mechanics.

  2:28
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  The “Hippy Days” of Quantum Physics

  How a group of free-thinking physicists in the 1970s helped shape quantum physics.

  1:43
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  How Large Language Models Like ChatGPT Work

  It’s not always easy to tell the difference between writing by a human and ChatGPT.

  1:44