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06:27 Science & Technology The insanely painful sting of the bullet ant Lesson duration 06:27 Manage Library 2,134,710 Views
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11:39 Psychology How to talk to people you disagree with Lesson duration 11:39 Manage Library 213,894 Views
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02:57 Physical Science What's the ultimate campfire fuel? Lesson duration 02:57 Manage Library 274,169 Views
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12:27 Thinking & Learning Why some of us don't have one true calling - Emilie Wapnick Lesson duration 12:27 Manage Library 1,746,554 Views
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03:48 Linguistics One of the most difficult words to translate... Lesson duration 03:48 Manage Library 2,007,771 Views
06:50 Thinking & Learning What you don't know about who you will become Lesson duration 06:50 Manage Library 827,799 Views
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04:33 Environmental Science How smart are orangutans? Lesson duration 04:33 Manage Library 3,694,352 Views
10:09 Global Economics Why can't we just print money to pay off debt? Lesson duration 10:09 Manage Library 4,182,621 Views
04:50 Science & Technology Does this look white to you? Lesson duration 04:50 Manage Library 10,834,931 Views
04:23 Earth and Space Science How do animals see in the dark? Lesson duration 04:23 Manage Library 1,255,458 Views
04:32 Health Our natural sleep cycle is nothing like what we do now Lesson duration 04:32 Manage Library 595,049 Views