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
Speed dating was invented by a Rabbi in 1999.
45
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
When dragonflies mate, their tails form a love heart.
22
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
Parents receive 1 out of every 5 Valentines.
20
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39