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What you can do with an extra jaw - Darien Satterfield
Discover the adaptation of the pharyngeal jaw, a secondary set of jaws that allow fish to capture and eat their prey at the same time.
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After stalki…
3 weeks, 2 days ago
How is power distributed in the United States government? - Belinda Stutzman
View full lesson: http://ed.ted.com/lessons/how-is-power-divided-in-the-united-states-government-belinda-stutzman
Article II of the United States Cons…
3 weeks, 2 days ago
One of history's most harmful myths - Anneliese Mehnert
Examine the empty land theory, which was created by European colonizers in South Africa to support their claims to the region.
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From the 1650s throug…
3 weeks, 2 days ago
The hidden treasures of Timbuktu - Elizabeth Cox
Dig into the ancient manuscripts, scrolls, and books of Timbuktu— and find out why they’ve been hidden for centuries.
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On the edge of the vast Sahar…
3 weeks, 2 days ago
How the water you flush cycles back to the water you drink - Francis de los Reyes
Explore the science of wastewater treatment, and find out why water reuse has become increasingly common worldwide.
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In 2003, Singapore’s national wa…
3 weeks, 2 days ago
Texting that saves lives - Nancy Lublin
When Nancy Lublin started texting teenagers to help with her social advocacy organization, what she found was shocking -- they started texting back a…
3 weeks, 2 days ago
What's a snollygoster? A concise lesson in political speak - Mark Forsyth
Most politicians choose their words carefully, to shape the reality they hope to create. But does it work? Etymologist Mark Forsyth shares a few ente…
3 weeks, 2 days ago
Every city needs vital honey bees - Noah Wilson-Rich
View full lesson: http://ed.ted.com/lessons/every-city-needs-healthy-honey-bees-noah-wilson-rich
Bees have been rapidly and mysteriously disappearing …
3 weeks, 2 days ago
The rise and fall of Italy's hired warriors - Stephanie Honchell Smith
Dig into the history of the elite mercenaries known as condottieri, who were soldiers for hire for Italy's rich and powerful.
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During the 14th and 15…
3 weeks, 2 days ago
A 5,300-year-old murder case - Albert Zink
Get to know the story of Ötzi the Iceman, a 5,300-year-old glacier mummy who researchers discovered had been murdered.
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In September 1991, two hikers…
3 weeks, 2 days ago