Sea otters hold hands while sleeping so they don’t drift away from each other.
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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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One in five long-term love relationships began with one or both partners being involved with others.
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A man's beard grows fastest when he anticipates sex.
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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
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14