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TIL spiders lack leg muscles and instead extend their legs through a hydraulic system powered by their blood pressure. Upon death, the legs curl up due to the loss of blood pressure.

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xyBg TIL the side swipe damage of the iceberg that collided with the Titanic was a freak accident that has never occurred before or since in maritime history. If the Titanic had not attempted to go around the iceberg, crashing into it instead head on, it would have survived the impact and stayed afloat.
166kX TIL The largest city by area in the U.S. is Sitka, Alaska (population: 8,458) which stretches over 4,815 square miles, almost four times bigger than the state of Rhode Island
J1LD1 TIL that the modern standard keyboard layout, QWERTY, was NOT designed to slow typists down but rather to prevent the mechanical typewriters from jamming.
9YDXQ TIL Doctors found an experimental way to inject oxygen straight into the bloodstream and human trials were planned.
E1Rp TIL you can whiten your teeth using banana peels