Sue Alspach, a member of the Florida Department of Agriculture and Consumer Services field team in southern Florida, removes a conehead termite (Nasutitermes corniger) nest. In a genetic analysis of invasive conehead termites in two sites in southern Florida, Dania Beach and Pompano Beach, Barbara Thorne, Ph.D., and colleagues discovered that the two populations—the only populations known in the U.S.—both arose from a single colonization event. (Photo credit: Barbara Thorne, Ph.D.)