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
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
40% of people who are rejected in romantic love slip into clinical depression.
72
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
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
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