The clip opens with a gentle, rhythmic burst of clapping that feels almost conversational—each handbeat landing softly, then receding with its own natural decay. In these few seconds you can hear the ...

Spoiler: It’s very loud. By Sabrina Imbler Starting in the late 2000s, Colleen Reichmuth and Ole Larsen made a number of visits to Six Flags Discovery Kingdom in Vallejo, Calif., to hear a walrus make ...

Hand clapping is ubiquitous behavior for humans across time and cultures, serving many different purposes: to signify approval with applause, for instance, or to keep time to music. Acousticians often ...