Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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One in five long-term love relationships began with one or both partners being involved with others.
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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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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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