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
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Historically, sweat has been an active ingredient in perfume and love potions.
309
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
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
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
A man's beard grows fastest when he anticipates sex.
239