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, ...

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 ...

· If you ever hear a spotted hyena making a sound, you might think it is laughing hysterically. It isn't. When a hyena is excited or scared, it lets out a noise that is a combination of a strange howl ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of a hyena, you make think of their signature laughter. But not all hyenas laugh. In fact, their laughter is ...

Have you ever heard a hyena laugh in Illinois? Not the four-legged kind that can crack your leg bone with one bite and suck the marrow while you’re screaming. Illinois is too cold for them. This is ...

They have come to establish that the sounds from the “laughing hyenas” have been originating from thieves who have been terrorising them. Residents of Malili sub-location, in Kilome region, Makueni ...

On quiet nights across large swaths of the African bush, you may hear a series of whooping calls in the distance. This unique sound is the long-distance vocalisation used by spotted hyenas (Crocuta ...