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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Everyone has one nostril that is larger than the other.
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Medication errors are three times higher among children and infants than with adults.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.