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TIL almost every species of cactus in the world grows in the Americas, except for the mistletoe cactus which grows in the tropics of Africa. It's unknown why this is the only cactus species outside of the Americas.

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E1XKP TIL viruses like ebola can change your eye color
4Xx5R TIL in 1917 when Shackleton found rescue from a doomed expedition he took to the Antarctic in August, 1914, he asked how the war turned out. The answer was "the war isn't over. Millions are dead. Europe is mad. The world is mad."
MevYA TIL The USPS used to burn letters sent to "Santa". Now nonprofit organizations respond to children's letters on behalf of Santa
E1jDw TIL hospitals legally have to show you their prices up front if you ask, this means you can go to different hospitals and get their rates for proceeders before having said proceeder.
kyOB TIL that an Apple laptop stinks. One 2001 iBook model used a glue that, after 12-18 months, may begin to smell like human body odor. It is so strong that repairs are difficult, because the smell makes people nauseous.