The truth behind a hyena’s strange laugh is more serious than many viewers expect. Instead of laughing like humans, hyenas use that sound to communicate emotional states such as stress, excitement, ...

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, ...

Acoustic analysis of the 'giggle' sound made by spotted hyenas has revealed that the animals' laughter encodes information about age, dominance and identity. Researchers writing in the open access ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. WERTHEIMER: That is Ed, the hyena ...