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TIL In 1924, a scientist was able to successfully crossbreed a sand dollar and a sea urchin. All of their hybrid children exclusively resembled their sea urchin mothers.

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d88YB TIL That kangaroo leather is illegal in California
9Y76Q TIL in today's world, the average job seeker is rejected 24 times before getting hired.
okg8 TIL kangaroos testicles are above their penis
QJYKL TIL the Graf Zeppelin was the first airship to offer commercial transatlantic flights, to cross the Pacific without stops, to circumnavigate the world, and to travel over a million miles.
56r TIL during WWII, 12000 conscientious objectors served the government without pay. Their many jobs included smokejumping into forest fires, being human test subjects, and working at mental hospitals, where their pacifist approach revolutionized the way mental patients were treated.