New work led by Roza Kamiloglu, a psychologist at the Free University of Amsterdam, provides evidence that there are just two ...

Not every species has the capacity to chuckle. Chimpanzees can ... capable of responding to something they find humorous with a giggle. Image caption, Laughter is involuntary and can take you ...

And once you hear your little one’s laugh for the first time, you won't be able to get enough of the sound, whether it's a chortle, chuckle or full-belly giggle. Your baby has been experimenting ...