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TIL The world suffered an invasion of cloned crayfish. Marbled crayfish were first discovered in 1995. Since they can clone themselves, people who bought them as pets ended up dumping their unwanted extra crayfish into rivers. There are now clone colonies all over the world

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gr8m9 TIL Ex British PM Margaret Thatcher was such a big fan of a political sitcom Yes Minister that she participated in a sketch written by her starring the main characters.
neKdP TIL that an Ohio man was declared legally dead in 1994 before resurfacing in 2013 and suing to be declared alive, but the court declined . He remains legally dead
gr8KA TIL Fritz Haber invented a process of ammonia synthesis both to save the world from starvation and to serve the German war machine. He never saw the creation of Zyklon B from his process and its use by the Nazis to kill his relatives in the gas chambers. His wife committed committed suicide.
X0mjQ TIL that bok choy, napa, and turnips are all the same species
m9Qo TIL of Laika, the first dog in space. Her journey was actually a journey into hell. The insulation came off the craft and the dog spent five hours in extreme stress and 100+ heat before succumbing and dying.