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TIL that although it is absent in mammals, the photoreceptive parietal eye--quite literally a third eye--was present in their closest extinct relatives, the therapsids

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Qpn6 TIL of target fixation, when a person is concentrating so much on avoiding something that he increases the chances of hitting it. Racecar drivers, fighter pilots, mountain bikers, and others moving at high speed can experience the issue.
kON9E TIL Garth Brooks holds the record for having the most diamond-certified records, having 9 of them - more than Led Zeppelin, The Rolling Stones and Pink Floyd put together.
oeNr TIL the United States has the worst child abuse record in the industrialized world. Four times more Americans are killed by their parents than as soldiers in Iraq and Afghanistan.
7rxAM TIL The Smallpox virus is the first and only infectious human disease to be completely eradicated; the last known case occurred in 1978. Small quantities of the virus still exist in two secure laboratories though; one in the USA and the other in Russia.
evoJ TIL that John Steinbeck’s Of Mice and Men was originally titled “Something That Happened”