Part I History.-1 The Discovery of Adult Mammalian Neurogenesis.-2 Song Learning in Birds Offers a Model for Neuronal Replacement in Adult Brain.-Part II Basic Aspects of Neurogenesis.-3 Fate Specif cation of Neural Stem Cells.-4 Fractones: Home and Conductors of the Neural Stem Cell Niche.-Part III Adult Neurogenesis in Non-mammalian Vertebrates.-5 Adult Neurogenesis in Teleost Fish.-6 Adult Neurogenesis in Reptiles.-Part IV Adult Neurogenesis in the Hippocampus.-7 From Embryonic to Adult Neurogenesis in the Dentate Gyrus.-8 Activity-Dependent Regulation of the Early Phase of Adult Hippocampal Neurogenesis.-9 Integration of New Neurons into the Adult Hippocampus.-10 Adult Neurogenesis in the Hippocampus: Lessons from Natural Populations.-11 Regulation of Adult Neurogenesis by Environment nd Learning.-Part V Adult Neurogenesis in the Olfactory Bulb.-12 Epithelial Organization of Adult Neurogenic Germinal Niches.-13 Neurogenesis in the Adult Rabbit: From Olfactory System to Cerebellum.-14 Neuronal Migration in the Adult Brain.-15 Development and Survival of Adult-Born Olfactory Neurons.-16 Wiring New Neurons with Old Circuits.-17 Control of Adult-Born Neuron Production by Converging GABA and Glutamate Signals.-Index.