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TIL: Moon Rock Given to Holland by Neil Armstrong and Buzz Aldrin tested to be Petrified Wood

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j6L6R TIL That most female cheetahs go their entire lives without raising a single cub to maturity. The species is dependent on "supermoms" that are particularly adept at raising cubs. One such supermom, Eleanor, has mothered at least 10% of all adult cheetahs in the southern Serengeti.
6EpYl TIL: That nearly 2,000 children die annually due to abuse or maltreatment in the United States
8ewGK TIL metal tube, invented in 1732, is what measures the speed of supersonic jets, all other airplanes, boats and even F1 race cars.
ADM1d TIL Not everyone can hear a low, rumbling, 'windy' sound between their ears when they shut their eyes really hard. This sound is caused by a muscle in the ear that only some people can contract voluntarily.
m1Lkx TIL about Pink Panthers, an international jewel thief network, responsible for over 350 robberies totaling over $500 million, with dozens of members breaking out of prisons worldwide.