At the beginning of the century, Karl von Frisch inaugurated the experimental analysis of bee behavior with his studies on form and color vision. Since then, experimental analysis of bee behavior has been extended to their orientation in space and time, sensory capabilities, and communication within a social group. How does a creature with a brain volume of scarcely one cubic millimeter generate such varied and complex behavior? This volume represents the latest research on the behavior and neurobiology of bees. Topics include: dance communication, foraging and search behavior, decision making, color vision, learning and memory, structure and function of brain neurons, immunocytological characterization of neuropils and identified neurons,and neuropharmacological studies of stereotyped and learned behavior. Together these papers illustrate the challenge that bee behavior presents to the neuroethologist as well as the progress that this field has made in recent years in the tradition of von Frisch's pioneering work.