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TIL of a high frequency tone that can only typically be heard by people under 25 years old called the Mosquito tone. Some places use it to deter teenagers from loitering the area.

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X06j8 TIL Though Jessica Simpson released 500+ versions of her hit song "A Public Affair" in 2006 with different fan names in the lyrics, you cannot find any of them online
njGB TIL that there are methane ice worms in the depths of the Gulf of Mexico that live off of bacteria that eat the chemicals in the “ice”.
grXrD TIL US oil company CITGO is owned by Venezuela's state-owned oil & gas company PDVSA
0wPPv TIL, The famous fictional British spy, James Bond (code name 007) was borrowed from a real-life American ornithologist who had written Birds of the West Indies, a book that Fleming, creator of James bond had loved in his youth.
BgRyD TIL-Drew Barrymore's Grandmother was a famous silent film actress, nicknamed "The Goddess of the Silent Screen".