Skittering figures of urban legend--and a ubiquitous reality--cockroaches are nearly as abhorred as they are ancient. Even as our efforts to exterminate them have developed into ever more complex forms of chemical warfare, roaches' basic design of six legs, two hypersensitive antennae, and one set of voracious mandibles has persisted unchanged for millions of years. But as Richard Schweid shows in The Cockroach Papers , while some species of these...