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TIL Starlings are every bit as intelligent as other more common pet bird species and can learn to talk.

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awNKA TIL The Boreal Chickadee adapts to cold climate by lowering its body temperature from 108°F (42°C) to 85°F (29°C) in order to conserve their fat storage.
dQmQ TIL the term “Glory Hole” originated in glass blowing. It is the hole providing access to a furnace used to reheat a piece of glass in between steps in the process.
xY7b TIL Cats in America have contributed to the extinction of 33 bird species.
XENrj TIL that metric paper sizes (like A4) reflect the number of equal cuts from an A0 sheet (1 square meter). So A1 is 0.5 sq meter, A2 is 0.25, etc. with all sizes of equal proportions. The closest to US letter paper is A4, which measures 210 x 297mm (8.3 x 11.7 inch, close to US letter 8.5 x 11 inch).
R7A74 TIL In France, one out of every three light bulbs is lit thanks to Nigerien uranium. In Niger, nearly 90% of the population has no access to electricity.