Sure, hyenas laugh. But did you know they groan, giggle and whoop too? Researchers at UC Berkeley have been listening to the calls of a colony of hyenas in the Berkeley hills and just released a paper ...

April 23, 2009 -- Deteriorating screws in bridges, fish that listen in the dark, medical devices that use sound to treat disease, the detected comeback of a long-gone whale, the sound of hyenas, ...

Spotted hyenas, the social, carnivorous creatures often referred to as "laughing hyenas," live across Africa and east to India. Their laughing sound, however, "has nothing to do with hyenas having a ...

A Hyena's giggle is not actually laughter, but a sound of frustration. New research found a way to distinguish individual hyenas based on the peculiarities of their, well, let's call them fighting ...

Status among hyenas sounds like a laughing matter. Spotted hyenas may not be amused, but they do make noises that to human ears sound like laughter. Biologists refer to this classic hyena laugh, a ...

Have you ever heard the phrase "laughing hyenas"? Do they really laugh? In a word, no. There are four kinds of hyenas _ aardwolf, brown, spotted and striped _ but only the spotted hyena makes sounds ...

The giggling sounds of a hyena contain important information about the animal's status, say scientists. In the first study to decipher the hyena's so-called "laugh", they have shown that the pitch of ...

Welcome back to ALL THINGS CONSIDERED. I'm Linda Wertheimer. Now, even if you've never heard a laughing hyena in the wild, you might recognize this hyena. Mr. CHEECH MARIN (Actor): (as Banzai) It's ...