Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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Couples' personalities converge over time to make partners more and more similar.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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The single biggest predictor of love is proximity.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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