› added 1 year ago

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TIL that female kangaroos can delay pregnancies in tough times, thanks to a process called embryonic diapause.

Read more kangaroosatrisk.org

via reddit.com

Z8eja TIL that during WWII, the US government recalled all paper currency circulating in Hawaii and replaced it with notes stamped with "HAWAII". In the event of a Japanese invasion of Hawaii, all currency captured would be easily identifiable and would be rendered worthless.
6yO7 TIL that in 1966 French President Charles de Gaulle demanded that all American military personnel leave France. American President Lyndon Johnson asked if that order applied to American soldiers in French cemeteries.
rNpe TIL one can legally buy radioactive isotopes online.
QJe66 TIL Ontario, Canada has a native Lizard called the Five-Lined Skink.
awoZo TIL about Sounding, the act of inserting a metal rod into your urethra. Sounding tubes are meant to be used medically, but some people figured out that they experience sexual pleasure from the act.