Brain, Behavior and Evolutioní is a journal with a loyal following, high standards, and a unique identity as the main outlet for the continuing scientific discourse on the structure, function and evolution of the nervous system. Our goal for the Journal is to embrace the whole universe of disciplines from neuroscience to behavioral ecology that contribute to understanding nervous system evolution, and to encourage the application of cutting-edge techniques from all of them to advance this understanding. The journal publishes comparative neurobiological studies that focus on the morphology, physiology, and histochemistry of various neural structures, as well as aspects of psychology, ecology, and ethology in both vertebrates and invertebrates as they relate to nervous system structure, function, and evolution. In addition to original research reports, the journal contains review and theory papers. One issue each year is devoted to the proceedings of the annual Karger Workshop. This issue includes a series of related review papers on a current topic in the area of comparative neurobiology and the evolution of the brain and behavior.