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TIL that elephants use a unique inner ear structure, and behavioral adaptations, to feel and respond to vibrations through the earth from other elephants kilometers away (called seismics).

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9wY6M TIL of the 1925 dystopian novel 'Berlin Without Jews'. In the book, a far-right nationalist political party takes power and expels all Jews from Germany, while society at large does nothing to stop them. When Hitler became Chancellor of Germany in 1933, the author committed suicide.
x6bX5 TIL that when pitching Bratz dolls for retailers to sell, they were only interested in purchasing the white, blonde, blue eyed doll (Cloe). The CEO of MGA Ent. refused & only accepted if all four were purchased. The dolls grossed $2 billion in sales in their first five years on the market.
d87K9 TIL Jonas Salk, who played a key role in prevention of polio outbreaks, entered college as a pre-law student, hoping to be elected to Congress one day. He switched to medicine because his mother thought that he wouldn't become a successful lawyer.
KY6wJ TIL historical linguist Max Müller had several theories about the origins of language. These include the Bow wow, Pooh pooh, Ding Dong, and Yo he ho theories.
NAQb TIL that when your hand gets wet, it wrinkles due to your body creating “treads” for better grip in the water, not because your hand is absorbing water.