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TIL that Curiosity played “Happy Birthday” to itself making “Happy Birthday” the first song and Curiosity the first device used to play music on a foreign planet.

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ADZVx TIL that humans can detect individuals that are blood-related kin through the sense of smell (Olfaction). This is thought to be an evolved defense against incest.
R5odw TIL Of the Filthy Thirteen, the paratroopers who were the basis for The Dirty Dozen and behaved just like them. On D-Day they jumped five miles behind the lines, blew up 2 German supply line bridges and held a 3rd bridge for 5 day until relieved. They were also pivotal in the Battle of the Bulge.
QOGe TIL that after giving birth, 50-75% of women carry fetal cells that persist for decades, becoming a part of the mother’s heart, brain, and blood. Mothers can transfer these cells to subsequent children.
VmLZ TIL the wild turkey was only 1 vote away from beating the bald eagle as America’s national bird
9w4XQ TIL that prior to making A Beautiful Mind, Ron Howard developed a different film about a man overcoming schizophrenia. Laws of Madness was an inspirational film about Michael Laudor, a Yale Law School graduate living with schizophrenia. The film was called off when Laudor murdered his girlfriend.