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TIL Rose plants are placed at the end of a row of grape vines on vineyards to act as early warning signs of mold or mildew.

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V8bB TIL the African Clawed Frog provided the first well-documented method of detecting pregnancy in women. Injecting urine from a pregnant woman into a frog resulted in the frog laying eggs shortly after.
DaaP TIL tipping ones hat originates from knights raising their face visors to show friendliness.
woE9M TIL Bach wrote a number of pieces specifically for the lautenwerck, an instrument that no longer exists as none survived the 19th century. Their strings were made of sheep guts and Bach owned two
4XleR TIL that the Water Boatman insect uses its penis to make a 99.2 decibel mating call, making it, pound for pound, the loudest creature on Earth.
W7J99 TIL that India and Pakistan played a Cricket World Cup Match in 1999 while both countries were at war with each other.