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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Everyone has one nostril that is larger than the other.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
Did you know?
There are more bacteria in your mouth than there are people in the world.