ScienceWhy'd The Scientist Cross The Road? To Figure Out Why You're LaughingKQED ScienceMar 15, 2014FacebookShare-FBTwitterShare-TwitterEmailShare-EmailCopy LinkCopy Link ...Read More Source: NPR Science - ingested into KQED SponsoredSponsored KQEDScienceGet the best of KQED's science coverage in your inbox weekly.Enter Email AddressSign UpThanks for signing up to the newsletter.