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TIL: Orange peels helped revive a Costa Rican forest

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wLbBP TIL the 'Red Admiral' butterfly has nothing to do with the navy, and is in fact a corruption of its' original name: Red Admirable
e0QWn TIL A fire truck from the TV show "Third Watch" was put into active duty with the FDNY in the aftermath of the 9/11 attacks.
6956Y TIL that Finland, the country of thousands of lakes, does not have that much water. The average depth of its lakes is only 7 meters, meaning that all the lake water in Finland combined is less than a fourth of the contents of Ladoga. However, to be fair, Ladoga is the largest lake in Europe.
QA8k TIL the little girl who sang “I Want a Hippopotamus for Christmas” actually got one, thanks to a newspaper campaign. She gave it to the local zoo and it lived there for 47 years.
grZ79 TIL musician Frank Zappa's father worked at the Aberdeen Proving Ground where chemical weapons were tested. The family had to store gas masks in the house. This led to Zappa's work frequently referencing biological warfare, disease, and the defense industry.