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.
27
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Couples' personalities converge over time to make partners more and more similar.
235
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103