DETROW: Or some version of that sound. This particular roar comes courtesy of a lion named Jeronimo (ph). Well, what if I told you that this sound... (SOUNDBITE OF LION ROARING) DETROW: ...Was also a ...

A loud, racing sound some compared to a jet engine roared in parts of the New Orleans area for several minutes Wednesday night after a steam valve opened at Entergy's Nine Mile Point plant in Bridge ...

Did you know that sound can cause physical pain? It’s true — humans typically start to feel pain at around 110 decibels. When standing just a few feet away, a lion’s roar reaches about 114 decibels, ...