Apes often make weird sounds when they're tickled, and some researchers now say these pants and hoots truly are related to human laughter. That's the conclusion of a new study in the journal Current ...

In the quest to fully grasp both the meaning and purpose of laughter, some experts have come to realize the importance of understanding its evolutionary origins. Did our distant ancestors use it as a ...

Laughter transcends all languages – and now scientists know this spontaneous response is universal across some primate species, too. The laughing patterns of human infants match those of great apes, ...

Babies may laugh like some apes a few months after birth before transitioning to chuckling more like human adults, a new study finds. Less is known about how human babies laugh. So Mariska Kret, a ...

Laughter transcends all languages -- and now scientists know this spontaneous response is universal across some primate species, too. The laughing patterns of human infants match those of great apes, ...

Laughter transcends all languages — and now scientists know this spontaneous response is universal across some primate species, too. The laughing patterns of human infants match those of great apes, ...

I've found out why people laugh. They laugh because it hurts... because its the only thing that'll make it stop hurting. But find me something that makes you laugh, a joke, anything--but something ...