Hearing a Disappearing World

While we humans are out there making a lot of noise, we’re not the only creatures on the planet that vocalize. Birds, whales, frogs and toads—all of these things make noise. But do they have a voice? And if so, what do their voices tell us about our natural world? Bernie Krause is a musician who has been recording environmental sounds all over the world since the 1970s. He recently spoke with Steve Paulson about what he’s learned in a lifetime of listening.