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, ...

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 ...