If you tickle a rat's belly, it squeals with laughter. However, we are unable to perceive this laughter as its frequency, around 50 kHz, exceeds the range of human hearing. Neuroscientist Jaak ...

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, ...

Don’t try this at home, but tickling a gorilla, orangutan, bonobo or chimp can inspire bursts of grunting sounds. Yes, that’s laughter, says Marina Davila Ross of the University of Portsmouth in ...

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, ...

Laughing is one of the best feelings in the world. It's a sign of happiness and it has some serious health benefits to boot. We tend to associate laughter with humans and possibly primates, but we're ...

College Park, MD (October 3, 2001)-Humans have many ways to express themselves, but one of the most enjoyable-and mysterious-is laughter. More than a frivolous emotional outburst, laughter has many ...

Everyone fakes a laugh once in a while – whether it's smarmy politicians, cheesy gameshow hosts or the suckup at work. But is that pseudo snickering really fooling anyone? Turns out it can, but not ...

There's nothing quite like that yelp of laughter you emit when being tickled. Now, experts have confirmed that shrieks ...