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TIL the disposable surgical masks are designed to prevent infections to others by the wearer rather than protect the wearers themselves. Wearing one is actually a public service.

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OOa7 TIL a new ant species was discovered in 2012 in Manhattan and is called the ManhattAnt.
NXnvE TIL: Umwelt, or the self-centered world of different organisms
RrA9 TIL More oil is spilled in the Niger delta every year than was spilled in 2010 by BP in the Gulf of Mexico.
5jnr TIL Richard Nixon possessed 3,700 hours of taped conversations while he was in the White House. Very few people have listened to more than a few hours of them. The tapes “go a long way toward showing Nixon’s underappreciated geopolitical genius and how he became the victim of his own emotionalism.”
AkGo TIL The letter “J” was the last letter added to the English alphabet