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TIL: Bigfoot was created as a silly unplanned joke by Raymond L. Wallace in a Northern California logging camp in 1958. He used carved wooden feet to stomp the tracks of over-sized footprints. Even though his family have shed light on the prank lots of people still believe in Bigfoot's existence.

5p5p TIL that submarines have become so stealthy that 2 nuclear armed & powered subs collided in the Atlantic Ocean without detecting each other
WkXBA TIL that thalidomide (the drug that causes birth defects like short arms and legs) is still manufactured and is used to treat Hansen's disease (leprosy) in Brazil and India. Babies are still being born deformed to this day.
d8vpr TIL the schoolchildren who sang "we don't need no education" in Pink Floyd's song "Another Brick in the Wall, Part 2" (1979) initially were not paid for their efforts. They were eventually given copies of the album, and the school received a £1,000 donation.
kOrOg TIL that between 2014 and 2016 an Australian electrician bunked off work roughly 140 times to play golf, covering his tracks using a crisp packet as a Faraday cage to block an electronic tracker that would have pinpointed his location.
e08kL TIL Not only do bats make high-pitched sounds for echolocation, many bat species also sing. A team of scientists that analyzed one species’ song translated it as a sequence that opens with a hello, then a gender identification, then some geographic information, & then a "let's talk" section.