THE KISS

With Valentine's Day around the corner, is a kiss just a kiss? An evolutionary biologist says kissing is common in the animal kingdom and may date back 21 million years. 

A certified sex therapist explains why we kiss and why some smooches linger in our memories for decades. Finally, a panel of editors at InStyle Magazine weighs in on the most iconic kisses in pop culture.

https://www.cbsnews.com/video/is-a-kiss-just-a-kiss-the-art-and-science-of-smooching/

The cultural connotations associated with kissing vary significantly between different societies and contexts. Depending on the culture and circumstances, a kiss can express a wide range of emotions, such as love, passion, romance, sexual attraction, sexual arousal, affection, respect, a wish for peace or good luck, as well as numerous other meanings