This hour of Radiolab: communicating across species. We get the story of a rescued whale that may have found a way to say thanks, ask whether dogs feel guilt, and wonder if a successful predator may have fallen in love with a photographer.
Radiolab is supported, in part, by the National Science Foundation
and the Alfred P. Sloan Foundation, enhancing public
understanding of science and technology in the modern world. More information about Sloan at