We love the sound of laughter - but only if it's spontaneous and open mouthed, a new study reveals today. Scientists discovered laughter is only truly infectious if its an open-mouthed 'ha-ha' rather ...

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 ...

Laughter is an everyday reminder that we humans are animals. In fact, when recorded laughter is slowed down, listeners can’t tell whether the sound is from a person or an animal. We throw our heads ...

Spotted hyenas, the social, carnivorous creatures often referred to as "laughing hyenas," live across Africa and east to India. Their laughing sound, however, "has nothing to do with hyenas having a ...

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 ...

It's a common sound in the Australian bush, starting up just around daylight: the laughing call of the kookaburra. In the group captured in this field recording by wildlife expert David Stewart, four ...

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 ...