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TIL about 'powder down': feathers produced by certain birds, including some parrots. It disintegrates into powder which helps lubricate their plumage.

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via reddit.com

LmGd TIL particles of your poop can be sent to a company that will sequence and analyze your bacteria data for under $100
R5jkj TIL Sudan has between 220 to 255 pyramids, which is more than twice the number of pyramids in Egypt.
grlEA TIL: The first Western film to be broadcast in North Korea was "Bend It Like Beckham," which state-run TV played on 26th December 2002.
b9Bj7 TIL Although not audible to the human ear, the secret voices of plants have revealed that cucumbers scream when they are sick, and flowers whine when their leaves are cut. There's also evidence that plants can hear themselves being eaten.
4kMeJ TIL while filming Terminator 2: Judgment Day, Linda Hamilton suffered permanent hearing damage in one ear when Arnold Schwarzenegger fired a shotgun inside an elevator after she had removed her ear plugs.