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
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
One in five long-term love relationships began with one or both partners being involved with others.
177
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The single biggest predictor of love is proximity.
30
A man's beard grows fastest when he anticipates sex.
239
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14