When dragonflies mate, their tails form a love heart.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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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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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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