The human body literally glows.

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Many feet bones don’t harden until you’re an adult.

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The average adult human has two to six pounds of bacteria in his or her body.

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The stars and flashes of light you see when you rub your eyes are called “phosphenes.”

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Illacme tobini is a millipede that needs very little introduction: It has 414 legs, no eyes, 200 poison glands, and four penises.

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Human beings have as many brain cells in their stomachs as cats have in their brains.

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