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TIL there is only one mammal species that uses stridulation as a means of communication with other members of its group. The lowland streaked tenrec, native to Madagascar, uses its spines to create high-pitched sounds by rubbing them against each other just as crickets use their scrapers to chirp.

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BrEok TIL that over 1/4th of global hazelnut production is bought by an Italian company to make Nutella.
oBbbL TIL James Murray Spangler (1848–1915), a salesman and janitor, invented the first commercially successful portable electric vacuum cleaner that revolutionized household carpet cleaning. His device was the first to use both a cloth filter bag and cleaning attachments. His invention was patented 1908.
WkDNN TIL About a bunch of stuff because National Geographic has a huge library of short "101" videos
gpp4 TIL That the man who invented Tang also invented Cool Whip, Pop Rocks, and quick set Jell-o.
1N7O TIL: The Vietnamese are the biggest consumers of the rhino horn and they received the idea that rhino horn was an aphrodisiac from the western media’s false reporting. There is no known record of its use as an aphrodisiac in Traditional Chinese Medicine.