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117

TIL that intense working out is bad for your immune system

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Qg4L TIL Lichens and cyanobacteria would be able to thrive on mars.
KOLlQ TIL Osama bin Laden's brothers own the Construction firm in charge of constructing the tallest building in the world.
J1pY4 TIL Craigslist generates over $600 million in revenue annually with only 50 employees.
KYonJ TIL the US Department of Agriculture published guidance on how to dispose of horses with explosives [PDF]
b9p9a TIL after the TV series ended, the helicopter from Airwolf was sold and served as an ambulance helicopter in Germany until it crashed in 1992, killing all on board.