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TIL that prehistoric, tree-like, giant cucumbers still exist on the island of Socotra. It is the only place on earth they still survive, and are facing extinction due to human encroachment.

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loG47 TIL that a significant contribution to the 2003 NE blackout was the tendency of high-voltage lines to sag under high current. As one power line sagged, touched an unmaintained tree and faulted, the load on remaining lines increased, causing a cascade of sagging onto trees and faulting.
xAl5 TIL that General Motors and other companies would buy street cars and trains and scrap them to decrease public transportation competition
5YjV8 TIL Fruit flies are considered model organisms to understand human alcoholism. Also, after extensive binge drinking males are known to engage in homosexual behavior
0dZmA TIL If you you experience auditory hallucinations (specifically sounds as opposed to voices) as you fall asleep or as you are waking up they are considered normal and up to 70% of people experience this occasionally. Hearing them in the middle of the day is not.
4XddR TIL that in 2006, 20,000-year-old fossilized human footprints were discovered in Australia which indicated that the man who made them was running at the speed of a modern Olympic sprinter, barefoot, in the sand.