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TIL that up to 25% of the Caucasian population cannot process codeine properly & the medication may not have an effect at all on up to 10% of the Caucasian population

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R5xpQ TIL in the mid-1800s, a snail spent nearly four years glued to a specimen card in the British Museum before scientists realized it was still alive.
4k86X TIL Emerson Romero was a silent film actor who was deaf. When movies with sound were invented, deaf actors got less roles and the intertitle text was removed. This led him to make an early form of movie captioning in 1947 so that movies would still be accessible to deaf people.
MeWG0 TIL That the Scaly Foot Gastropod lives in hydrothermal vents up to 750°F, doesn't eat food, and is the only living creature that encorporates iron into its skeleton.
Xygj TIL that massive amounts of birds are killed each year by radio antennas. And that changing the static red light to a blinking light can cut the death toll by up to 70%.
nvA9 TIL the inventor of the chocolate chip cookie sold the idea to Nestle Toll House in return for a lifetime supply of chocolate.