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 Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Couples' personalities converge over time to make partners more and more similar.
235
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
The average person will go on a date at least 100 times before they finally marry.
33
Men who kiss their wives in the morning live five years longer than those who don't.
1k
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