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TIL Common Smoke detectors in Russia use weapons grade Plutonium-239 for the source.

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abWy TIL Bald Eagles go through a crazy color transformation: the first five years they gradually change; the beak turns from black to yellow, the eyes from brown to pale yellow, body feathers from mottled to dark brown, and head and tail feathers from mottled to solid white.
ep5pg TIL that in the early 20th century, Danes living under Prussian rule were banned from displaying the Danish flag. To protest this, they bred pigs with a red and white color pattern similar to their flag. The breed is now called the Danish Protest Pig
G0RG TIL A woman helped the police for years to track down a serial killer. She was working on a book detailing his grisly murders. But while writing it, the killer was suddenly caught. By pure coincidence, it was a close friend who she never could have suspected. His name was Ted Bundy.
Y7nb7 TIL the largest moon in our solar system, Ganymede, is larger than the planet of Mercury
neEdd TIL some plants that relied on extinct animals to disperse their seeds now rely on rodents, who will bury them. The seeds travel further when other rodents steal them, and bury them again, and again, and again, etc.