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389

Short answer: Skin protects itself, hair doesn't.

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RAL8 TIL: After WWII, the Russians used 17 different dog breeds to create the “supreme military dog” - and it looks like a giant fluffy poodle
aoYA TIL that when Socrates was sentenced to death, he was asked to propose an alternate sentence befitting the crime, and proposed that they instead serve him dinner at the town hall.
e0vm4 TIL that the Guinness Book of World Record for longest marriage is 86 years
YpWNA TIL that PG-13 system was created by the MPAA due to complaints regarding the violent nature of some scenes from two Spielberg films - Gremlins, and more prominently Indiana Jones: Temple of Doom. This was based on Spielberg's own suggestion to Jack Valenti, who created the original MPAA ratings.
Ae9n TIL George Washinton’s adopted son was the father-in-law of Confederate General Robert E. Lee