Baby Laughter 3 (AUDIO) Acoustical Society of America Your browser does not support the audio element. Caption Few things can delight an adult more easily than the uninhibited, effervescent laughter of a baby. Yet baby laughter, a new study shows, differs from adult laughter in a key way: Babies laugh as they both exhale and inhale, in a manner that is remarkably similar to nonhuman primates. The research will be described by Disa Sauter during a talk at the Acoustical Society of America's 176th Meeting, Nov. 5-9. Credit Publicly available Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.