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TIL that goose bumps are considered a vestigal reflex (no longer necessary) in humans; it's purpose in apes is to straighten body hairs to make the animal both appear larger and keep warm.

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VklZ TIL that in 1896 Auburn ROTC cadets greased the skids of a railway track before a football game. The train with the incoming team couldn’t stop and slid halfway to the next town, forcing them to walk 5 miles to the game possibly contributing to their 45-0 loss.
R5w8 TIL blood appears green if you’re deep enough underwater
jP6a TIL 1 in 5 adults admits to peeing in the pool. This, with a combination of cosmetics and sweat, is what leads to people’s eyes turning red. Not the chlorine
X04bR TIL in 2022, the US created the 'American Song Contest', based on Eurovision. It failed due to the "the relative homogeneity of the American musical landscape," and the fact that Americans were not campy enough to capture the magic of Eurovision.
e8gg TIL a man was sentenced to life without parole for accountability murder while the man he was charged for aiding was acquitted by a separate jury