The thunderous roar of the MGM lion that has opened Hollywood films for nearly a century has conditioned us to hear the big cat’s call as a blunt declaration: a booming blast announcing power and ...

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 ...

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The roar of an African lion is one of the most iconic sounds of the animal kingdom. However, my new research suggests it should actually be separated into two distinct vocalisations: the full-throated ...