From a noted science journalist comes a wonderfully witty and fascinating exploration of how and why we kiss. When did humans begin to kiss? Why is kissing integral to some cultures and alien to others? Do good kissers make the best lovers? And is that expensive lip-plumping gloss worth it? Sheril Kirshenbaum, a biologist and science journalist, tackles these questions and more in The Science of a Kiss. It's everything you always...