When dragonflies mate, their tails form a love heart.
22
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A man's beard grows fastest when he anticipates sex.
239
You burn 26 calories in a one minute kiss.
605
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
Parents receive 1 out of every 5 Valentines.
20
One in five long-term love relationships began with one or both partners being involved with others.
177