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TIL there are no narwhals kept in captivity. All attempts to do so have been unsuccessful

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oR7aR TIL mixed-breed dogs live an average of 14 years while purebreds live only an average of almost 10 years.
p88WA TIL The phrase “shoo in” dates back to horse racing days when you could urge – or shoo – something towards victory. Rather than saying someone is a “shoe-in” to win (which has become another common phrase)
Wk6XL Self-declared Flat Earth researcher and DIY steam rocket enthusiast “Mad” Mike Hughes has finally managed to prove the haters wrong about his ability to blast himself some 1,875 feet into the sky without being crushed or scalded to death, the Associated Press reported on Sunday.
R5nZj TIL that mountain lions kill animals much larger than they can eat in a sitting, because other predators (wolves, bears, etc) will inevitably steal their prey. These carcasses become complete ecosystems to several insects who travel from carcass to carcass.
pYZDO TIL About a power plant turbine bearing at Holtwood Hydroelectric Power Plant that has been operating maintenance free for over 100 years and rated by the ASME (American Society of Mechanical Engineers) to continue operating for another 1300 years without maintenance.