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, ...

Lions are famous for a roar that can rattle windows and carry across the savanna, yet researchers now say the big cats have been hiding a vocal trick no one had clearly documented before. By listening ...

What are Africa’s big cats saying? Discover the meaning behind their roars, saws and chirps. Lions roar, leopards saw, and cheetahs chirp, but what are they really saying? "Big Cats Unleashed" decodes ...

For decades, a lion's roar was thought to be a single, familiar sound. But hidden inside that iconic call is a second, long-overlooked "intermediary roar" that reveals a more complex vocal landscape ...

In Big Cats 24/7, viewers follow local and international wildlife filmmakers on the trail of lions, leopards and cheetahs in the heart of Botswana’s Okavango Delta. Using the latest technology, the ...

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All right, think for a second about a lion's roar. You've heard this sound, I'm sure. (SOUNDBITE OF LION ROARING) DETROW: Or some version of that sound. This ...