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!)
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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
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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
The left ear is more responsive to words of love and emotion whispered into it than the right.
44
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