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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The single biggest predictor of love is proximity.
30
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Kissing an infection-free partner is good for your teeth!
141
Parents receive 1 out of every 5 Valentines.
20
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255