Most people smile when they are frustrated, according to a study.
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Craniopagus conjoined twins Krista and Tatiana can see through each other’s eyes.
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People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
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The human body contains over a billion miles of DNA.
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Our Right Lungs takes more air than our left lung.
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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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