When dragonflies mate, their tails form a love heart.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Kissing an infection-free partner is good for your teeth!
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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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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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