Tattoos: What Makes Them Permanent?

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Humans shed 30,000 to 40,000 skin cells per hour, or approximately one million per day. Given that huge amount of continually sloughed-off skin, what makes tattoos permanent? This TED-Ed video explains. (Don't get your hopes up about that embarrassing ink you got in college.)

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Check out Twaggies' very funny clip:

Give a Man a Fish - Twaggies by Twaggies
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