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TIL That serotonin, the neurotransmitter responsible for happiness, can be toxic. When injected into skin it causes extreme pain and is a main ingredient of wasp venom

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pYOwb TIL - Water can exist in solid , liquid and gaseous state all at once and it’s called Triple Point of Water.
rNNXW TIL Contrary to popular belief, the City of New York was not named directly after York in England, but for the Duke of York, who was later crowned as King James II. When England seized the area from the Dutch, he was appointed as its proprietor by his older brother, King Charles II.
6EkWQ TIL that Canada has entire mountain ranges that have never been explored.
1aQy4 TIL nearly every single resident of Whittier, AK (population 200+) lives in the Begich Towers Condominium. The Whittier Police Department, hospital, mayor’s office, etc., are also located in the same complex.
p8yRQ TIL that In Switzerland rabies was virtually eliminated after scientists placed chicken heads laced with live attenuated vaccine in the Swiss Alps, which the foxes (the main carriers of the virus) ate and therefore immunized themselves.