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TIL: Moray eel is the only known vertebrae to use its second set of jaws to both restrain and transport prey.

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R5rN8 TIL the original Leopard 1 main battle tank was designed by luxury car maker Porsche. Porsche also submitted a design for the WW2 era tiger tank but lost out to a competitor.
6914m TIL that the Chicago area has more hot dog restaurants than McDonald's, Wendy's, and Burger King restaurants combined
RvB9 TIL: A gay couple who were front and center in media supporting same-sex adoption later adopted a baby boy for the sole purpose of molesting him and did so for six years.
x6NJD TIL that Magnesium helped advance photojournalism. The first photography flash, a powder mix of Mg & potassium, created bright light when ignited. Jacob Riis was an early adopter and used it to document life in the often dark NYC's tenements. His work sparked public outcry, and then housing reforms
Z8yGa TIL international students can attend for free all public colleges in Germany, Iceland, Norway and Finland; many have programs taught 100% in English; and the average tuition at colleges throughout Europe is $2,225/year.