The human body contains trillions of cells.
Fact #90
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The first successful human heart transplant was performed in 1967.
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Octopuses have three hearts and blue blood.
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The human body glows faintly in complete darkness.
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The Earth's rotation causes day and night cycles.
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The human body contains about 206 bones.
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Octopuses have three hearts and blue blood.
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The first artificial heart was implanted in the 1980s.
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Your brain predicts events before you consciously experience them.
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