In honor of Valentine’s Day, learn about how kissing has changed since the lascivious Romans, watch the most memorable Hollywood kisses, and discover 10 rules for puckering up.
Sheril Kirshenbaum is a science writer for the Discover Magazine blog, The Intersection, and a research scientist at the University of Texas at Austin, as well as the co-author of Unscientific America, with Chris Mooney. She has been a guest on numerous radio shows such as The Brian Lehrer Show and The Bob Edwards Show, and is an advisor and regular contributor to NPR’s Science Fridays.