National Geographic Documentaries When Continents Collide

Three million years ago, the rise of the Panamanian land bridge connected the American continents and unleashed an astonishing animal encounter. The emergence of the narrow, 400-mile-long Isthmus of Panama is one of the most important events in Earth’s history – and one of the least understood. In this show, we reveal the story of how the area comprising the ...
  • 2010
  • 00:45:07
  • 13-14
  • Added on: 05/29/2017

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The Nature of Things When North Goes South

The earth has two North poles, the geographic and the magnetic. The magnetic pole is the one that attracts the needles of our compasses and it’s always moving. Science has taught us that the magnetic pole flips from north to south every 250,000 years. Since the planet is now more than 500,000 years overdue for its next inversion, we could ...
  • 2010
  • 00:43:56
  • 13-14
  • Added on: 06/14/2013

Our Vancouver Why Nepal's Quake Caused So Much Damage

Johanna Wagstaffe explains the science behind why the shaking was so extreme.
  • 2015
  • 00:02:45
  • 9-12
  • Added on: 05/04/2015

Alien Deep Wrecks of the Abyss

Dr. Robert Ballard is the Indiana Jones of the Alien Deep. He's on the hunt for the world's oldest shipwrecks in the Mediterranean Sea. Using tactics and technology developed over a 50-year career at sea, he is on a quest to uncover the lost history of the Ancient world. Who were these earliest of mariners and how did they live ...
  • 2012
  • 00:45:02
  • 13-14
  • Added on: 01/15/2016

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