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TIL By damming up rivers, beavers create natural wetlands that (1) encourage the growth of salmon, trout, frogs, and songbirds; (2) work like sponges during floods to reduce the amount of damage; and (3) create a barrier of passive resistance from violent predators like coyotes, wolves, and bears.

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ADjoo TIL that 14.7% of men that had a vasectomy reported pain in the testicles (PVPS) that didn't go away at least 7 months after the procedure, with 0.9% describing the pain as "quite severe and noticeably affecting their quality of life".
QJOg9 TIL that in 1937 a massive demand for sulfa, the first and only effective broad-spectrum antibiotic available before penicillin, and nonexistent testing requirements led to a mass poisoning with over 100 deaths. This led to the passage of the Federal Food, Drug, and Cosmetic Act in 1938.
WLg9 TIL that Christopher Columbus correctly predicted an eclipse to trick the native inhabitants of Jamaica into giving him food and supplies…
kOOw7 A windowless skyscraper in the heart of New York City may be the secret Manhattan surveillance hub of the US National Security Agency (NSA), The Intercept has reported. The brutalist, 29-storey AT&T Long Lines Building at 33 Thomas Street has sheer concrete walls that could reportedly survive an atomic explosion; inside, documents leaked by NSA whistleblower Edward Snowden suggest is one of the agency’s most important spying centres.
QLRd TIL horse-sized ducks (Dromornithidae) roamed Australia 50,000 years ago