Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Parents receive 1 out of every 5 Valentines.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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