In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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Couples' personalities converge over time to make partners more and more similar.
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Kissing an infection-free partner is good for your teeth!
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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