Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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The single biggest predictor of love is proximity.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Speed dating was invented by a Rabbi in 1999.
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