It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Speed dating was invented by a Rabbi in 1999.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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