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TIL dogs have a special tastebuds on the end of their tongue dedicated to tasting water.

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Bgoxk TIL that 3-5 cups of coffee a day is associated with the lowest overall cardiovascular disease risk after controlling for other factors
77ZO TIL that Godwin’s law states that “As an online discussion grows longer, the probability of a comparison involving Hitler approaches 1”
KYR8E TIL blood lost during a cycle isn’t blood that’s been “stored” over the month long cycle, it’s blood coming from blood vessels in the uterus. As the uterine lining pulls away, ‘tiny’ ruptures/tears are caused in the blood vessels, and heavy cycles are caused by enlarged vessels & hormone imbalance
rR7b4 TIL the maze generation algorithm for the 1982 Atari game Entombed always makes solvable mazes just by looking at the 5 nearest tiles, and nobody understands why it works—it came upon a programmer when he was drunk
vPaPB TIL of "Androgen Insensitivity Syndrome" where the body doesn't respond to testosterone so they have the genetic makeup of a man while showing the physical traits of a woman