When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
You burn 26 calories in a one minute kiss.
605
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
633
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!
43
Kissing an infection-free partner is good for your teeth!
141
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
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
Wearing red increases attraction.
30