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TIL Crescent Wrench is a brand that was genericized to a category of wrenches

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rNOMe TIL Otters have skin pockets for their favorite rocks
ADYAl TIL there are radioactive elements called "bone seekers" because they are chemically similar to calcium and the body tries to use them to build bones.
R7y0w TIL: Bees are actually a democracy. They have debates when choosing a new home and each scout is given an equal platform. The votes end with a unanimous decision as each bee in the colony does its own research to verify the scout claims. The Queen remains impartial throughout the process.
vk1K TIL the lyrics of O Canada in English talk about protecting the country, while in French they talk about the country protecting its people.
l77D1 TIL MIT engineers made the first-ever plane with no moving parts by using electricity to ionize air (2018).