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TIL that dragonflies are among nature's most efficient predators, capturing 95% of their intended prey. By comparison, sharks and lions capture only 50% and 25%, respectively, of the prey animals they pursue.

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WkddY TIL as well as being the largest mammals, blue whales are also the loudest, producing low-frequency "pulses" that can be heard from more than 500 miles away.
W7QA TIL the most powerful h-bomb in history had a mushroom cloud that reached almost twice as high as the height from which Felix Baumgartner jumped a week ago
J1w7V TIL that the actor Lorne Greene, later known for his roles on 'Bonanza' and 'Battlestar Galactica', first achieved fame as a Radio Newscaster for the Canadian Broadcasting Corporation during the early days of WWII. He became known as 'The Voice of Doom" because of the grim news he often reported.
Z89YY TIL in 1975, a Soviet naval officer led a mutiny onboard a frigate with the aim of toppling the government of Brezhnev. It failed after a standoff with half of the Soviet Baltic fleet, but an article about it inspired an insurance salesman named Tom Clancy to write his book, The Hunt for Red October
W4v4 TIL In April 2008, Prince covered “Creep” at Coachella. This version was captured on a video and uploaded to Youtube. However, it was quickly taken down at Prince’s request. After finding out about the blocking, Thom Yorke was quoted as saying: “Well, tell him to unblock it. It’s our song.”