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 ...

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 ...

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 ...

Posts to Reddit and Twitter found by Buzzfeed tell of instances where the Amazon Echo Dot, Echo, and other Echo hardware emits a laugh. While Alexa does have a laughing sound available by request, the ...

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 ...