What are we talking about in discussing “male” and “female”? Chromosomes? Hormones? Behavior? Society? Join our distinguished panelists as they offer new insights into scientific understandings of sex and gender, tackling such questions as: how do we talk about sex differences and similarities in science, medicine, and society? What kind of data do we use, and how do we interpret evidence? What is the purpose of using sex as a variable? Moderated by Pulitzer Prize–winning science journalist Natalie Angier '78, the panel features Art Arnold, professor, department of integrative biology and Physiology, UCLA; Daphna Joel, professor, School of Psychological Sciences and Sagol School of Neuroscience, Tel Aviv University; Rebecca Jordan-Young, Tow Associate Professor and chair of women’s, gender, and sexuality studies, Barnard College; and Rae Silver, Helene L. and Mark N. Kaplan Professor of Natural and Physical Sciences, departments of psychology, Barnard College and Columbia University, and pathology and cell biology, Columbia University Medical Center.