Jack Hitt reports on one woman's opera about Chicken Little.

Ira with Lloyd Natoff, on killing chickens.

Michael Lewis on duck hunting.

Ira with chicken photographer Tamara Staples.

Jay Allison presents a woman who "talks" to animals and a slaughterhouse owner.

Short fiction by George Saunders.

Ira with Clarence Hicks, who picks up dead animals for a living.

Jay Allison's story about Leo Brillo in Los Angeles who saves animals.

Paul Tough visits Catherine Chalmers. She raises small animals and insects in her apartment, feeds them to each other, and photographs them eating each other.

An original radio drama called "Kathleen on the Carpet," in which animals talk and hold their own "animal court." It's a comedy by David Sedaris, starring our own radio theater company, the Pinetree Gang.

Anthropologists agree that humans stopped being animals when they started walking upright, on two legs. But scientists don't agree on why our ancestors did this.