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TIL in Ancient Greece, throwing an apple at a woman was considered to be a marriage proposal.

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XZ7k TIL a species of tiger moths effectively jams bats’ echolocation by producing up to 4,500 clicks per second. This jamming is the most effective prey defense against bats ever documented, reducing their success rate tenfold.
BgBmk Til that only three objects have ever been recovered from inside the great pyramid
VMJoZ TIL that if an acronym is said letter by letter, like FBI or ATM, it is called an initialism. To be a true acronym all of the letters must be said as a word, some examples are NATO, NASA and POTUS.
xVZBB Today I learned the Horror frog or "Wolverine frog" breaks it's own bones to create a bone claw that protrudes from it's toes. The result is similar to the claws of the comic book character, "The Wolverine."
6kXZ TIL Mexican drug cartels reap $19 billion to $29 billion from U.S. drug sales alone.