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TIL In 2013, the first artificially reproduced human tooth was created in China. Scientists were able to create the tooth using epithelial cells extracted from human urine.

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d8jRd TIL that an AI composed it’s own song called Blue Jeans and Bloody Tears by being “fed hundreds of Eurovision songs into a neuron network”.
W7eNX TIL the first “Blackhawk” helicopter was the Sikorsky S-67, a tandem seat attack helicopter with a compartment to transport 8 troops, and short wings that held ordinance. A design that would later be seen on the Russian Mi-24 Hind.
nW4bd TIL almost no ticks and mites have faces. Instead, they have a gnathosoma, which is effectively a giant mouth. They need to rely on vibrations to perceive their environments and find hosts.
neR4o TIL In 2014, the UK based EIA (Environmental Investigation Agency) named Rakuten as “the world’s biggest online retailer of whale meat and elephant ivory, calling on the company to stop selling the items.”
pmDG TIL Mumbai is the only city in the world to have a fully functioning national park with freely roaming large carnivores, within city limits.