In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
One in five long-term love relationships began with one or both partners being involved with others.
177
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
464
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