When dragonflies mate, their tails form a love heart.
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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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