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15:55 Psychology The surprising science of alpha males - Frans de Waal Lesson duration 15:55 2,193,307 Views
05:55 Science & Technology The smallest solution to one of our biggest problems Lesson duration 05:55 486,465 Views
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04:54 Science & Technology Why are earthquakes so hard to predict? Lesson duration 04:54 1,218,684 Views
05:24 Design, Engineering & Technology Why isn’t the Netherlands underwater? Lesson duration 05:24 3,558,545 Views
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04:31 Social Studies From pacifist to spy: WWII’s surprising secret agent Lesson duration 04:31 1,380,079 Views
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06:10 Social Studies Who were Las Mariposas, and why were they murdered? Lesson duration 06:10 1,547,967 Views
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05:11 Philosophy The meaning of life according to Simone de Beauvoir Lesson duration 05:11 1,700,511 Views
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