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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Cyanide works by making the human body unable to use oxygen.
Everyone has one nostril that is larger than the other.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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