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TIL that crows may be just as smart as apes, and not only recognize general threats, like a hawk, but also recognize personal threats and remember them with a grudge.

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6E8vw The plant-based Impossible Burger 2.0 was one of the biggest hits of CES 2019, and Impossible is back at CES in 2020 with two new meat substitutes: the new Impossible Pork and Impossible Sausage.
0wxrL TIL Edwin Flack is Australia's first and sole Olympic Gold Medalist in the 1896 Olympic in Greece, before Australia was even an official country (1901). With no flag, national anthem or uniform; he simply competed in his Melbourne Grammar School banner and singlet.
KYG84 TIL that Tornadoes in the Southern Hemisphere rotate clockwise, while tornadoes in the Northern Hemisphere rotate counterclockwise.
E16b7 TIL about 1st Lt. Mary Louise Hawkins who assisted with the evacuation of patients in WWII. Her plane was forced to make an emergency landing and a patient's trachea was severed by debris. Mary went full MacGyver and managed to keep the man alive with found items for 19 hrs until help arrived.
MeDyA TIL about the trials for Rocket Mail. Since 1810 inventors have tried to deliver mail via artillery, and later rockets. In 1959 the US navy fired a cruise missile filled with mail from a submarine to a Naval base in Florida. Despite enthousiasm by the Postmaster General it was a one time thing.