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
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
You burn 26 calories in a one minute kiss.
605
One in five long-term love relationships began with one or both partners being involved with others.
177
In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
44
Historically, sweat has been an active ingredient in perfume and love potions.
309
Couples' personalities converge over time to make partners more and more similar.
235