E.O. Wilson on Ants as Superorganism

E.O. Wilson may know more about ants than anyone else on the planet. He and his colleague, Bert Holldobler, are the authors of "The Superorganism." It's a book about the organization and communication among the millions of members of the colonies of certain species of ants. Wilson tells Steve Paulson they do it all with chemical signals secreted by their bodies.