This University of Wisconsin-Madison Medical Microbiology and Immunology website features the Edward G. Ruby Lab. The Ruby Lab is attempting to define the behavioral, physiological and molecular events that characterize the bacterial colonization of animal epithelial tissue, using the symbiotic association of the light-emitting organ of the squid Euprymna scolopes by the luminous bacterium Vibrio fischeri as a natural study system. The site includes links to an overview of lab projects and personnel, protocols (Word documents), a complete list of all Euprymna scolopes/Vibrio fischeri papers in order of publication date, a detailed list of lab publications, and related links.