When dragonflies mate, their tails form a love heart.
22
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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!)
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Raj from the Big Bang Theory is married to Miss India.
11
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The average person will go on a date at least 100 times before they finally marry.
33
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69