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TIL That not only are trees and other plants interconnected, but trees will trade food between one another; a sick tree will transfer its energy stores to other healthy trees including trees of other species along with distress signals that may help other trees prepare themselves for trouble.

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QNbkp TIL of Harpalus, Alexander the Great's childhood friend and accountant. Expecting Alexander to die in India, he began embezzling huge sums to support his kingly lifestyle only to flee when he heard Alexander was returning. He arrived in Athens with 6k mercenaries, 30 ships and 5k talents in cash
ePNk TIL that both co-directors of King Kong appeared in the 1933 film as the pilots who finally killed him, because “We should kill the sonofabitch ourselves.”
nevl7 TIL Sleep literally cleans your brain. During slumber, more cerebrospinal fluid flushes through the brain to wash away harmful proteins and toxins that build up during the day.
eJyg TIL that when famed reclusive author Thomas Pynchon appeared as himself on The Simpsons, he refused to speak one of the lines in which he was supposed to call Homer a “fat ass,” arguing he couldn’t possibly say anything bad about his “role model”
XEkAD TIL that after 9/11, Martin Scorcese was pressured to remove the Twin Towers seen in the ending of the 2002 movie "Gangs Of New York". Scorsese chose to keep the scene in, saying that "The people in the film ... were part of the creation of that skyline, not the destruction of it."