Leonard Maler will focus on a specialized caudal portion of the cerebellum of teleost fish whose structure and physiology has been especially well studies to the point that we now have detailed computational analyses of its function. Idoia Quintana-Urzainqui will talk about what sharks can tell us about the evolution of the telencephalon, mainly focusing on the evolutionary expansion of the pallium and how shark embryos can hold key information to interpret the origin of the developmental processes that triggered this phenomenon.