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TIL Caribbean sperm whales have a distinct culture. They are known to interact only with other whales with their own unique dialects and 'accents' which are variations of clicks unique to that area.

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W1k9 TIL that no one knows who invented the fire hydrant, because its patent was burned in a fire.
njwP TIL that the Titanic is the only ocean liner to ever be sunk by an iceberg.
yQADM TIL There are almost no mosquitoes in Disney World (Florida) even though it is in a swampy territory abundant with bugs. They have a sophisticated mosquito surveillance program to try and eliminate them quickly.
yVGo8 TIL Barbie’s physical appearance was modeled on the German Bild Lilli doll, a risqué gag gift for men based upon a cartoon character featured in the West German newspaper Bild Zeitung.
5Yvnp TIL Jamie Siminoff , the inventor of the Ring Doorbell failed to secure a deal on ABC’s Shark Tank but later went on to sell his company to Amazon for $1 Billion . He then later got the opportunity to guest star on the show alongside the same investors who once turned him down.