What's a significant threat to the survival of captive gorillas?  Surprisingly it's heart disease. It’s ironic. In the wild, gorillas inch closer to extinction daily from habitat loss and poaching. Because of this troubling outlook for wild gorillas, zookeepers especially want to maintain captive gorillas in good health. Yet male gorillas in zoos and preserves have significant rates of chronic heart disease...

Radio stories usually aren't very complicated. Generally speaking, you can probably place stories into two categories. The first is the argument story -- these people say this, these other people disagree. The second is the narrative story -- the piece is organized chronologically as a sequence of events. (To be sure, I'm painting with a broad brush.)

Whitney Jones produced a somewhat different story last fall while he was at the Transom Story Workshop where I teach. His story "Leaving" falls in the "narrative story" category but instead of one single sequence of events, "Leaving" follows two -- a parallel narrative. That's unusual.

The reason you don't hear parallel narratives on the radio too often is because they're complex. They require more attention from a listener who, typically, is doing  something else while they listen. So, in recognition of that, producers and editors tend to want to simplify. That's smart, I think. But, if the writer pays close attention to keeping the two separate narratives clear and simple and brings them together in the end in a satisfying manner, then I think a parallel narrative can work on the radio and I'd like to hear more of them.