The left ear is more responsive to words of love and emotion whispered into it than the right.
44
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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
You burn 26 calories in a one minute kiss.
605
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
28
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12