Ask Smithsonian: Why Do We Kiss?

Is a kiss really just a kiss? In this one-minute video, our Ask Smithsonian Host, Eric Schulze, explains why we pucker up. (Still Image: Wavebreak Media LTD/Wavebreak Media Ltd./Corbis) (1:11)

Learn more about why we kiss here.

Ask Smithsonian is a weekly video series that unravels some of science's most surprising mysteries. The series is made possible through the support of GEICO. Smithsonian members could save even MORE with a special GEICO #MemberDiscount on auto insurance.

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