One in five long-term love relationships began with one or both partners being involved with others.
177
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
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
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
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
When dragonflies mate, their tails form a love heart.
22
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
You burn 26 calories in a one minute kiss.
605