"Do animals laugh?" In 2009 Marina Davila Ross, a psychologist at the U.K.'s University of Portsmouth, conducted experiments in which she tickled infant and juvenile primates—such as orangutans ...

Researchers have discovered that rats can laugh - we just can't hear it because it's ultrasonic! Play vocalisations are therefore a great way to disambiguate whether two animals are actually ...

Humans don't only laugh when they are playing or being tickled. With us, animal laughter has been extended to other social contexts. However, the animal origin is evident in that those who laugh ...

A new study by scientists at UCLA reveals that there are dozens of animal species that laugh and managed to tally a full 65 different creatures that laugh in the way that we think of it.

Whether animals share our sense of joy has been a hot topic in research. Chimpanzees and orangutan laugh when playing together and both species play tickle games, with older animals tickling the ...

Other mammals laugh too, including rats when they are tickled. “It’s likely that many species of animals laugh and we just don’t realize it because we don’t know what their laughter sounds ...

Reaction Shorts shows a try-not-to-laugh compilation of the best animal fails. Alan Alda, Mike Farrell Among Those Paying Tribute to Loretta Swit: "A Supremely Talented Actor" ...