A new study showed that laughter is a better indicator in determining friendships than even speech. Volunteers were able to pinpoint groups of friends versus strangers by listening to their laughter.

Laughing is something most people do every day, but chances are we don’t really understand why we do it. "Laughter is one of a series of in-born human behaviors, along with things like coughing and ...

My grandmother’s laugh was a sound I’ll never forget. Deep, wheezy, fitful, it betrayed her appetite for nonsense as well as her secret smoking habit. One day, I thought, I’d have a laugh like that: ...

For many years, psychologists and behavioral biologists agreed that laughter was a unique emotional expression found only in humans. However, as the study of animal emotions expanded this idea was ...

Recent research has revealed that animals like dogs, rats, and chimpanzees might exhibit traits similar to human laughter. Patricia Simonet discovered a unique sound in dogs during play, while Jaak ...