Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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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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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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Kissing an infection-free partner is good for your teeth!
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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