Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
When dragonflies mate, their tails form a love heart.
22
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
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Speed dating was invented by a Rabbi in 1999.
45
The left ear is more responsive to words of love and emotion whispered into it than the right.
44