From the Editor's Desk: Receiving the Torch in the Era of Sexology's Renaissance Kenneth J. Zucker Editorial Introduction Pages: 1 - 6
Guest Editors' Introduction: Biological Research on Sex-Dimorphic Behavior and Sexual Orientation Kenneth J. ZuckerLee EllisRay Blanchard Introduction Pages: 7 - 7
Hormonal Mechanisms Underlying Aberrant Sexual Differentiation in Male Rats Prenatally Exposed to Alcohol, Stress, or Both O. Byron WardIngeborg L. WardJeffrey A. French OriginalPaper Pages: 9 - 16
Sex Differences in Play Fighting Revisited: Traditional and Nontraditional Mechanisms of Sexual Differentiation in Rats Sergio M. Pellis OriginalPaper Pages: 17 - 26
Development of Sexual Partner Preference in the Zebra Finch: A Socially Monogamous, Pair-Bonding Animal Elizabeth Adkins-Regan OriginalPaper Pages: 27 - 33
Prenatal Exposure of the Ovine Fetus to Androgens Sexually Differentiates the Steroid Feedback Mechanisms That Control Gonadotropin Releasing Hormone Secretion and Disrupts Ovarian Cycles Jane E. RobinsonRachel A. BirchVasantha Padmanabhan OriginalPaper Pages: 35 - 41
Hormonal Influences on Sexual Partner Preference in Rams Charles E. RoselliJohn A. ReskoFred Stormshak OriginalPaper Pages: 43 - 49
How Many Gay Men Owe Their Sexual Orientation to Fraternal Birth Order? James M. CantorRay BlanchardAnthony F. Bogaert OriginalPaper Pages: 63 - 71
Age of Puberty and Sexual Orientation in a National Probability Sample Anthony F. BogaertChris FriesenPanagiota Klentrou OriginalPaper Pages: 73 - 81
Gender-Related Traits of Heterosexual and Homosexual Men and Women Richard A. Lippa OriginalPaper Pages: 83 - 98
Dermatoglyphics, Handedness, Sex, and Sexual Orientation Brian S. MustanskiJ. Michael BaileySarah Kaspar OriginalPaper Pages: 113 - 122
Differences in Finger Length Ratios Between Self-Identified “Butch” and “Femme” Lesbians Windy M. BrownChristopher J. FinnS. Marc Breedlove OriginalPaper Pages: 123 - 127
Relationships Among Childhood Sex-Atypical Behavior, Spatial Ability, Handedness, and Sexual Orientation in Men Kenneth M. Cohen OriginalPaper Pages: 129 - 143
On the Elusive Nature of Sex Differences in Cognition: Hormonal Influences Contributing to Within-Sex Variation Geoff SandersMarie SjodinMarianne de Chastelaine OriginalPaper Pages: 145 - 152