› added 4 years ago

359

TIL that ferrets can die if they don't have sex.

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LQApP TIL the median retirement account holdings for US workers aged 55 to 64 years old was $185,000 in 2022.
GAJw7 TIL that birds control the shape of their wings during flight using hook-shaped microstructures in their feathers to prevent them spreading too far apart. The detachment of the hooks is noisy, so they are missing from silent fliers such as barn owls.
5Y5aQ TIL of Operation Vegetarian a British WWII project to introduce anthrax into German beef and dairy herds and possibly spread to the human population.
o6PK TIL - Greyhounds are universal blood donors, and with few exceptions, blood from any greyhound can be given to any other breed of dog.
dbyd TIL the Voyager 1 spacecraft, currently more than 20 billion km from earth, is powered by a radioisotope with a half-life of 87.7 years. It has been slowly shutting down systems since 2007 to conserve energy, and by 2025 will go completely dark as it loses the ability to power a single instrument.