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TIL the Calusa built fish holding pens 7x larger than an NBA basketball court in what is now Florida, requiring understanding of daily and seasonal tides, hydrology and fish biology in 1300 CE to cope with sea level changes

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via reddit.com

P1ZL TIL that in 2006, 1/3 of all stocks traded in the USA and EU were traded electronically by specially designed algorithms without any human input. Today, it is estimated that around 70% of stocks traded in the US and EU markets are bought/sold by algorithmic programs, with some markets pushing 80%.
Eg60V TIL that Japan has a lower obesity rate than Ethiopia.
lDV7 TIL: Hitler had a problem with uncontrollable flatulance
9XQ7 TIL a nutrition professor lost 27 pounds off of a “Convencience Store” diet of Twinkies, Doritos, and sugary cereals in order to prove that weight loss relied on caloric intake, not nutrition.
nWeVY TIL that hedgehogs can suffer from 'Balloon Syndrome' where they inflate like a balloon after injury or infection and then need to be deflated to prevent permanent injury or worse.