The world's tallest man reached 8 feet 11 inches at 21.
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Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
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Roughly a quarter of the world's people live in China.
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The single biggest predictor of love is proximity.
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There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
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