If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
You burn 26 calories in a one minute kiss.
605
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
When dragonflies mate, their tails form a love heart.
22
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
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 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
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