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TIL a couple spent 26 years replanting a rain forest in 1991 and now it covers over 300 acres of wildlife that is home to more than 200 globally endangered species of plants and animals, including Asian elephants and Bengal tigers.

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16Vnr TIL There is an exotic species of roach, extinct in the wild, that still exists because insect lovers thought it looked cool. Scientists who discovered and collected the Simandoa conserfariam bred them in captivity for the pet trade after their habitat was destroyed by mining.
yVKVw TIL 'The Land of Nod' is originally a biblical reference of a sort of purgatory where Cain was exiled after murdering Abel -- rather than a 'dreamland' sleepytime dealie as it is now colloquially known.
lonwK TIL Dolly Parton gave each family who lost its primary residence in the 2016 TN fires $1,000 a month for five months. When she arrived to help dole out the final payments, she brought the nearly 900 families an unexpected bonus – another $5,000 each for a total of $10,000.
KYXDR TIL sound travels at 343 m/s in air, 1,481 m/s in water (almost 4.3 times as fast) and at 5,120 m/s in iron (almost 15 times as fast) and in diamond sound travels at 12,000 metres per second (39,000 ft/s),[2]— about 35 times its speed in air because of how exceptionally stiff diamond is.
OGn8a TIL: One of the most expensive books ever listed on Amazon was a biology textbook about flies selling for $23,698,655.98 USD- due to a competitive dynamic pricing algorithm gone mad; discovered by accident when a post doctoral student wanted to buy a copy of the out of print book.