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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
A man's beard grows fastest when he anticipates sex.
239