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Stuff to Blow Your Mind
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Key Facts In This Video

  1. The design of your five-fingered hand dates back 340 million years. 00:17

  2. An extra digit on your hand would not be very helpful. 01:30

  3. Humans have a power grip that other primates lack. 02:07

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Guardian Science and Tech

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MindYourDecisions

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MindYourDecisions

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MindYourDecisions
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Crash Course
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SciShow
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Techquickie
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