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TIL For years, NFL ignored concussion evidence

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via reddit.com

OoDO4 TIL: Astronauts left their poop on the moon. They threw out the garbage thinking everything would be sanitized by the solar radiation. Scientists don't know if the microbes in the feces are still alive, but future moon missions will investigate that.
dDwm8 TIL Osedax worms use acid to bore into shark and whale bones and teeth once they are shed or in carcasses, and rely on symbiotic bacteria to release nutrients the worms can absorb. The females reproduce continuously. 100s of dwarf males live inside a female's surrounding tube.
Ype0Z TIL there is a small settlement in Africa called Singapore
Rom9 TIL a professional rugby player had his scrotum torn open during a match, had it sewn back together on the bench, and finished the match.
6E54Q TIL In February 2018, a pride of lions killed and ate a man suspected of being a poacher near Kruger National Park in South Africa.