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TIL that a component of the immune system is defensins ('defense' + '-in', which is the suffix for anything protein related). They are proteins with antimicrobial properties and can kill microbes directly, which can be an alternative for antibiotics.

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R70Qw TIL Over 100 Years Ago, the US Government Commissioned 7,500 Watercolor Paintings of Every Kind of Fruit in the Country
ZKMa TIL there’s a man who uses his hands and feet to climb rocks, buildings, and 100-foot walls like a monkey – and it started with a suicide attempt.
vVYx Today I learned When Mel Blanc (Voice of Bugs Bunny, Porky Pig, Tweety and 100’s of others) was in a coma the doctors asked him, “Bugs, can you hear me?” and he replied, “What’s up Doc?” in Bugs’ voice.
W7J5X TIL that, twice in the 1990s, crews lived in the Biosphere 2 facility to demonstrate how to live in a closed ecosystem, cultivating their fields and making scientific experimentations
dwm7 TIL Absinthe, The Green Fairy, was invented by the Swiss in the 19th century. Though it contains wormwood, it’s no more hallucinogenic than vodka or whiskey. Economics/politics are the true culprits for Absinthe once being banned across the world. Also, the stuff you get in the US is the real deal.