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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.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.