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TIL Malo kingi or the common kingslayer is an Australian Irukandji jellyfish named after Robert King - an American tourist killed by one of them in 2002. They are the smallest jellyfish in the world, the size of a thumbnail and hospitalise 50-100 people each year. Their venom causes haemorrhaging.

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waP8 TIL that there is a plant called Acacia phlebophylla which only grows in one place in the world, Mount Buffalo in Australia. It also happens to be one of the purest natural sources of the psychadelic drug DMT.
1678 TIL that the Nazi eugenics programme was heavily influenced by the American one, and that prominent American scientists praised it.
J8Ll TIL the shortest correspondence in history was between novelist Victor Hugo and his publisher, after the publication of Les Miserables. Wishing to learn how sales were going, Hugo sent a telegram with only one character. “?”. As the book had already sold out, the publisher responded: “!”
v1jvD TIL In 1251, Henry III was given a Polar Bear by the King of Norway. It was kept in the Tower of London on a long chain so that it could swim in the Thames
Xw6Q TIL that the abbreviation ‘lb’ for pounds comes from the Latin 'libra’ (scales), like the constellation.