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TIL that a single species of spiders reproduces by a process known as “traumatic insemination”, in which the male sedates the female and proceeds to pierce her abdomen with one of its two penises to directly deposit sperm on its ovaries.

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x6mP7 TIL In 1913, Nebraska outlawed oral sex. The law that banned it was the 69th to pass the legislature that year, so the law was officially know as Act 69.
XxZk TIL That the Blue Tang Fish ‘Dory from finding Nemo’ is poisonous to eat, has venomous barbs on their back, and will cut you.
4Xn8o TIL Mt. Everest was involuntarily named after George Everest, the surveyor-general of India. Andrew Waugh hoped to honor his predessor. When Everest found out, he hated the idea because the Sherpa people couldn't pronounce his name, and it didn't translate to Hindi. Waugh did it anyway.
LQvGZ TIL Asia and Australia are separated by a deep-water channel located in Indonesia called Wallace Line that kept the flora and fauna of Sahul Shelf (East Indonesia/Australia) separated from those of Sunda Shelf (West Indonesia/Asia)
grPl7 TIL meteors burn up when they enter the atmosphere is due to the air in front of it compresses incredibly quickly, causing drastic temperature rise.