The researchers identified 65 species that make noise when they play by looking at existing studies. They estimate there certainly could be more chuckling critters out there. Kristina Jackson/Getty ...

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 ...

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 ...

For every mom, the sound of a baby laughing is like music to their ears. And, when the family pet dog is part of it, their giggles and snorts become even more special. This mom was smiling from ear to ...