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TIL When hummingbirds reach puberty, the males’ beaks grow longer and sharper. They use them to stab other males in the throat to secure mating spots.

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7vKL TIL during WWII the US deployed scout dogs that were able to warn their handlers of the presence of Japanese forces at ranges up to 1,000 yards, allowing the Americans to avoid ambushes and gain the element of surprise.
Wk5NA TIL that natural skin condoms do not protect against STDs because the pores in the condoms are large enough to allow viruses to pass through.
aBp0 TIL of Francine Gottfried, a woman who was famous briefly in the 1960s because crowds of men would stare at and harass her on her way to work. The crowd peaked at 10,000 and required a police escort
8aLLb TIL that french queen Marie-Antoinette never said the infamous quote "let them eat cake" according to historians. The first recording of Marie Antoinette in relation to the phrase did not occur until 50 years after her death.
oBO4A TIL that the Rosetta Stone, the key to deciphering Ancient Egyptian, was found in 1799 during the French military expedition to Egypt, by a French Army engineer captain named Pierre-Francois Bouchard. Bouchard had been part of a unit tasked with restoring an old fort, where he spotted the slab.