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
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Couples' personalities converge over time to make partners more and more similar.
235
Historically, sweat has been an active ingredient in perfume and love potions.
309
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737
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