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TIL the common consensus of drinking 8 glasses of water a day to remain hydrated was based on a 1945 claim with no medical evidence.

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X00PQ TIL Tiger beetles run so fast they temporarily blind themselves. When moving at up to 120 body lengths per second, their environment becomes a blur as their eyes can't gather enough light to form an image
5Y6ZB TIL that one of the few cases of a child actually dying from intentionally poisoned Halloween candy was Timothy O'Bryan. The Culprit had been his own father Ronald, who had laced his pixy sticks with cyanide to claim his life insurance.
Oo5AR TIL that olives are essentially inedible when picked. It takes an extensive curing process for them to become edible, with no history of how an inedible fruit became such a popular fruit.
oodK TIL that www.milk.com is not owned by anyone in the dairy industry and is just one man posting random links and bits of prose. He refuses to sell it for less than $10000000
Mex0a TIL In 2014, highly trained snipers nearly knocked out power to Silicon Valley and were never caught.