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TIL that there is an extinct species of shark that had teeth resembling a buzz saw

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G7J5 TIL the colors of fire hydrants display the amount of water they provide
JYa84 TIL that the word "sabotage" comes from the French word for clog; "sabot". When looms were industrialised, redundant workers would throw their clogs into the machinery and this became known as sabotage. It is theorised that this is also the origin of the phrase "clogged up".
VM8bQ TIL dead squids continue to try and reproduce if they haven't been boiled properly.
VBlV8 TIL: GYATT is how Gen Z says "Goddamn!" and it is usually a compliment.
KYlb9 TIL Unlike in the West where people count on their fingers up to 5 or 10, the Kaluli people of Papua New Guinea have a counting system using many body parts that goes up to 35.