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TIL that the earliest fossils interpreted as multicellular animal embryos, predating the Cambrian explosion by nearly 100 million years, have been found in the chinese Doushantuo formation.

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6Ex88 TIL that San Marino is obliged to use Italy's mint, and is forbidden to cultivate tobacco. In exchange for these limitations, Italy provides San Marino an annual stipend of 250 tonnes of sea salt, 40 tonnes of tobacco and 20 tonnes of cigarettes.
4kmVw TIL The mantis shrimp, known for its vibrant colors and extremely complex eyes, possesses one of the most sophisticated visual systems in the animal kingdom. It can see both ultraviolet and polarized light and has twelve different types of color receptors, compared to humans who only have three.
epndE TIL about de Clérambault's Syndrome, a disorder where someone has delusions of another person being infatuated with them. One case involved a woman who believed King George V of England was communicating his love for her by moving the curtains at Buckingham Palace.
OGEA1 TIL about Ewa Wisnierska, a paraglider who fell unconscious after being sucked into a cumulonimbus cloud (totaling 33.000ft) during a thunderstorm. She survived and was virtually unharmed.
XL0R TIL that in World War II, German soldiers in American POW camps were sometimes allowed to leave without guards on the honor system, visiting nearby towns. Black American guards noted that German prisoners could visit segregated restaurants that they could not.