The 87th Annual Meeting of the American Association of Physical Anthropologists (2018)

Session 21. Causes, Context, and Consequences of Human Sexual Dimorphism. Invited Poster Symposium. Chair: Holly Dunsworth, Cara Wall-Scheffler Co-organizers: Cara Wall-Scheffler,, Professor of Biology, Department of Biology, Seattle Pacific University

April 12, 2018 , Texas VII Add to calendar

Sexual dimorphism has long been a fertile research topic among scientists and scholars of every biological guild. For those interested in human evolution in particular, the earliest reconstructions of human evolutionary history made large claims regarding sex differences in morphology and physiology—implicating any potential difference in driving culturally specific social behaviors, particularly those surrounding mating and reproduction. Sexual selection theory, coupled with comparative anatomical and behavioral observations of primarily nonhuman primates, has traditionally dominated this discourse, which has greatly impacted science and scholarship beyond evolutionary biology. For example, psychological, historical, and sociological discussions of the male-dominated social systems commonly consider a social system’s primate origins and suggest an evolutionary origin.  This is particularly true of Western notions of patriarchy that is suggested to owe its success [sic] specifically to active selection. Given the extent to which the history of science has impacted culture, interpretations of sex differences in morphology and their implications--many of which originated in Victorian England--should be reexamined.  Here, researchers from diverse perspectives will come together to illuminate the causes, context, and consequences of human sexual dimorphism and difference, and to synthesize a complex understanding of this phenomenon of human biology and genetics, and its ties to past and present human behavior, culture, and society. What arises will be significant for specialists and non-specialists, as these issues are gaining evermore prominence in the public sphere and as anthropologists play an increasingly crucial role in shaping public understanding of human nature.

Individual Poster Presentations (Even)
Individual Poster Presentations (Odd)
Roundtable Discussion
Discussant: Sarah Hrdy
Discussant: Kimberly Hamlin
Summary Thoughts
1 Add to calendar Why are women smaller than men?. Holly Dunsworth.
2 Add to calendar Sexual dimorphism in morphology and reproductive effort. Peter T. Ellison, Richard G. Bribiescas.
3 Add to calendar One genome, two phenotypes: A multi-disciplinary perspective on sexual dimorphism. Leslie A. Knapp.
4 Add to calendar The ontogeny of facial masculinity. Carolyn R. Hodges-Simeon, Seth M. Weinberg, Kylie Steinhilber, Michael Gurven, Steven JC. Gaulin.
5 Add to calendar The Evolution of Human Sex Differences. David Puts.
6 Add to calendar Sex-Differentiated Developmental Trajectories and the Role of Mother’s Milk. Katie Hinde.
7 Add to calendar Do bonobo (Pan paniscus) brains develop to break the sexual dimorphism mold?. Brian Hare.
8 Add to calendar Sexual dimorphism in an expanding Au. afarensis assemblage. Philip L. Reno.
9 Add to calendar A fossil-based perspective on modern human pelvic sexual dimorphism. Caroline VanSickle.
10 Add to calendar Perilous Pregnancies, Frail Bodies, and Proper Behavior: A biohistoric analysis of sexual dimorphism and the construction of sex and gender roles. Liz Ortiz, Adam C. Zimmer, Pamela K. Stone, Ryan P. Harrod.
11 Add to calendar Location, Location, Location: Sexual dimorphism of the human pelvis has no universal pattern. Helen K. Kurki, Cara Wall-Scheffler.
12 Add to calendar Are there any sexually dimorphic measures that matter for locomotor effort?. Cara M. Wall-Scheffler, Marcie J. Myers.
13 Add to calendar The role of political, economic, and biocultural processes in producing sexual dimorphism and health disparities in recent human populations. Ashley C. Dafoe, Mary C. McAlpine, Molly K. Zuckerman.
14 Add to calendar Sexual dimorphism and the rise of male dominance. Rebecca J. Lewis, E. Christopher Kirk, Ashley Gosselin-Ildari.
15 Add to calendar Dietary consequences of sexual size dimorphism in primate. Erin R. Vogel, Jessica M. Rothman.