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
Two in five people in the world marry their first love.
270
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
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
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
-2
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81