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99

TIL there are an estimated 2 BILLION parking spots in America

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X0PBk TIL All bluehead wrasses hatch as females. As they mature, some individuals become male.
X0jP6 TIL The US Government Secretly Contaminated U.S. Cities in the 1950s-1960s
4XOXg TIL that cotton balls aren't made of cotton. Despite their name, most modern cotton balls are made out of cheaper, bleached synthetic fibers such as polyester and nylon.
jkEn TIL There is a frog in Australia that fills up with water like a balloon. Aborigines learned that if you squeeze one gently, you can drink from it.
yQJxe TIL: Many dentists acknowledge that for adults with good oral hygiene practices, seeing the dentist twice a year is probably more often than is really necessary. Once every 12-16 months is perfectly sufficient for many people.