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TIL about Colobopsis explodens, the "suicidal attack ants" found in Southeast Asia. Their rare combat mechanism involves workers exploding in self-defense, smothering enemies with toxic "yellow goo."

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1ojV TIL When Guinea declared its independence from France, the French retaliated by burning office files, cutting telephone lines, and even ripped electrical sockets out of walls before leaving the country, effectively cutting off all aid
5VYyQ TIL about the Ryugyong Hotel, which North Korea has been trying to open since 1987
NXZZM TIL the Welcome to Fabulous Las Vegas sign has a different message on its lesser-known back side
YpkQA TIL in 1903, two men and a pit bull made the first documented journey by automobile from San Francisco to New York using only a connection of dirt roads, cow paths, and railroad beds. The journey took 63 days, became a national sensation, and called for a system of long distance roads.
N7pQJ TIL during the aftermath of Katrina, Memorial Hospital in New Orleans euthanized patients the staff felt they could not reasonably evacuate.