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 someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
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
Wearing red increases attraction.
30
40% of people who are rejected in romantic love slip into clinical depression.
72
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
One in five long-term love relationships began with one or both partners being involved with others.
177
Men who kiss their wives in the morning live five years longer than those who don't.
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