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 ...

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, ...

I don’t know all about the exact onomatopoeia of a hyena’s laugh. Maybe it’s hee-hee-ha-ha? One thing I’m sure of is that they’re actually very complex animals. Especially females, but we’ll get to ...