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Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
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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 average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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