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TIL Dogs poop in alignment with Earth’s North-South magnetic field

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QNE7d TIL Freshwater snails are one of the world's most deadly animals because they transmit the organism that causes schistosomiasis (aka bilharzia), which is, in and of itself, one of the most deadly parasites on the planet! Nearly 230m people were infected in 2014 and there are~200,000 deaths annually.
d8mdK TIL that hundreds of women disguised themselves as men in order to fight in the American Civil War. They were first discovered in 1863, when a Union burial detail found that the corpse of a woman wearing the uniform of a Confederate private. Estimates put the number of female soldiers at 400-750.
rmmd TIL that two amazon booksellers using automatic algorithms to set their prices once each accidentally based their pricing on the other. The automatic programs created an upward spiral of competing prices that eventually topped $3 million for a textbook.
DQgeJ TIL that while serving in WWII, Mel Brooks was assembling a bridge one night when he heard German soldiers singing badly in the distance, he grabbed a bullhorn and sang back. When he was finished he thought he heard applause.
6EJMQ TIL: The Blue Ringed Octopus is both venomous and poisonous thanks to the neurotoxin Tetrodotoxin