Inherited and Environmental Determinants of Bisexuality in the Male Rat -- A Sexually Dimorphic Motor Nucleus: Steroid Sensitive Afferents, Sex Differences and Hormonal Regulation -- Neonatal Programming of Adult Partner Preference in Male Rats -- Neural Bases of Behavioral Sex Differences in Quail -- Animal Sexual Differentiation : the Early Days and Current Questions -- Consequences of Gender Differences in Mathematical Reasoning Ability and some Biological Linkages -- How and Why Sex Differences Evolve, with Spatial Ability as a Paradigm Example -- Hormonal and Neural Correlates of Sex-Typed Behavioral Development in Human Beings -- Are Sex or Gender Relevant Categories to Language Performance ? A Critical Review -- Organizational Effects of Gonadal Hormones Induce Qualitative Differences in Visuospatial Navigation -- Intraspecific Aggression in Mice (Mus Domesticus): Male and Female Strategies -- A Comparison of Drug Responses by Male and Female Rats During Aggression Tests -- Sex Differences in Primate Social Behavior -- What, How, and Why of Gender Differences from an Evolutionary Perspective -- Sex and the Mutant Mouse: Strategies for Understanding the Sexual Differentiation of the Brain -- Sexualisation of Behavior During Development in the Pig -- Some Genetic Considerations in the Development of Sexual Orientation -- Morphological Correlates of Neuronal Plasticity to Gonadal Steroids : Sexual Differentiation of the Preoptic Area -- Mating-Induced Expression of Immediate-Early Genes in the Male and Female Nervous System -- The Development of Sex Differences and Similarities in Brain Anatomy, Physiology and Behavior is Under Complex Hormonal Control -- Sexual Dimorphism in the Accessory Olfactory System -- Sex Differences in the Rat Cerebral Cortex -- Sexual Dimorphisms in Regulatory Systems for Aggression -- Sexually Dimorphic Hypothalamic Cell Groups and a Related Pathway that are Essential for Masculine Copulatory Behavior -- Sex Differences in Human Social Behavior: Meta-Analytic Studies of Social Psychological Research -- The Psychobiology of Sexual Orientation -- Alternative Conceptions of Sex (and Sex Differences) -- Dimensions of Human Sexual identity: Transsexuals, Homosexuals, Fetishists, Cross-Gendered Children and Animal Models -- List of Participants.