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TIL about unisexual mole salamanders which are an all-female complex of salamanders that 'steal' sperm from up to five different species of salamanders in the genus Ambystoma and recombine it to produce female hybrid offspring. This method of reproduction is called kleptogenesis.

yQr8X TIL In 1988, Denny's restaurants (which are open 24 hours, 365 days a year) decided to close for Christmas and give their employees a day off. The only problem: their doors had no locks on them, so they had to outfit 700 locations with new locks so they would be able to close for the day.
lo8Y7 TIL that the Mask of Warka, the oldest discovered accurate depiction of a human face (3100 BC), disappeared from the National Museum of Iraq after the 2003 US invasion. A US military mission to recover lost artifacts found the mask, undamaged, buried in a farmer's backyard.
K8wJ TIL The word “shrapnel” comes from Henry Shrapnel, a Major General in the British Army and inventor of the spherical case cannonball.
E1Ag0 TIL when music gives you chills it is called frission, and it only happens to about 50% of people. Studies have linked frission to dopamine release, and have found that those that experience frission are more likely to have more intense emotions.
9Y7gM TIL that because he was in exile for nearly 30 years, Hồ Chí Minh could speak fluently as well as read and write professionally in French, English, Russian, Cantonese and Mandarin as well as his mother tongue Vietnamese