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TIL that the hardened, outer wing on beetles is called Elytra

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MeNaW TIL there's an Australian moth (Uraba lugens) that wears its previous heads as a hat. They call it the Mad Hatterpillar.
b9154 TIL In Austria people get 14 pay packets per year. The 13th and 14th are payed in Summer and at Christmas, so you get double pay for the holidays.
nWr49 TIL The Red Hot Chili Peppers recorded their album Blood Sugar Sex Magik in the mansion Harry Houdini allegedly once lived in, as the band wanted to record in an unusual setting to enhance their creative output. Drummer Chad Smith was convinced the house was haunted and refused to stay in the house.
JYV4Q TIL of Samuel L. Gravely Jr. He was the first African American in the U.S. Navy to serve aboard a fighting ship as an officer, the first to command a Navy ship, the first fleet commander, and the first to become a flag officer, retiring as a vice admiral.
W7GM4 TIL that Astronaut John Young smuggled a corned beef sandwich aboard the Gemini III mission in 1965. He offered it to his crewmate mid-flight, but they had to stash it quickly as floating crumbs threatened to interfere with the spacecraft's instruments.