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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Couples' personalities converge over time to make partners more and more similar.
235
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
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
40% of people who are rejected in romantic love slip into clinical depression.
72
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88