Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
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The first female self-made millionaire in America was a black woman.
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Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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