Sausage of Science

Twice the Caras! Cara and Cristina interview Dr. Cara Wall-Scheffler, professor and co-chair of Biology at Seattle Pacific University and an affiliate professor in the Department of Anthropology at the University of Washington. Her research focuses on the evolution of human sexual dimorphism, particularly in the context of balancing the pressures of thermoregulation and long-distance locomotion. She has been working on this problem for over 20 years. Her work demonstrates that different selection pressures have acted on men and women and that women, in particular, have a rare (among mammals) ability to work both efficiently (energy per unit of mass) and economically (total energy) when carrying loads. Women’s abilities are partly due to their relatively small body size, relatively high surface area, relatively broader pelves, and unique methods of thermoregulation. In addition to her research, Dr. Wall-Scheffler teaches courses in human physiology and evolutionary mechanisms on campus and at the Blakely Island Field Station. Find the publications discussed in today’s episode here: Anderson A, Chilczuk S, Nelson K, Ruther R, Wall-Scheffler C (2023) The Myth of Man the Hunter: Women’s contribution to the hunt across ethnographic contexts. PLoS ONE 18(6): e0287101. https://doi.org/10.1371/journal.pone.0287101 Wall‐Scheffler, C. and H. Kurki, Beyond sex, gender, and other dilemmas: Human pelvic morphology from an integrative context. Evolutionary Anthropology. 2023;1‐13. https://doi.org/10.1002/evan.22001 Wall-Scheffler CM (2022). Women carry for less: body size, pelvis width, loading position and energetics. Evolutionary Human Sciences 4, e36, 1–17. https://doi.org/10.1017/ehs.2022.35 ------------------------------ Cara Wall-Scheffler’s email: cwallsch@spu.edu, Twitter: @WallScheffler ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc Cara Ocobock, Co-Host, Website: sites.nd.edu/cara-ocobock/, Email:cocobock@nd.edu, Twitter:@CaraOcobock Cristina Gildee, SoS producer: Website: cristinagildee.org, E-mail: cgildee@uw.edu, Twitter:@CristinaGildee

Prof. Liz Mallott of Washington University in St. Louis joins Chris and Cristina to talk about her research on the human microbiome. ----------------------------------------------------------------- Dr. Liz Mallott is an assistant professor of Biology at Washington University in St. Louis. Professor Mallott’s research examines how social and environmental determinants of health shape variation in the human microbiome. Current projects examine how exposure to environmental pollutants, which disproportionately impact racial and ethnic minorities in the United States, influences the gut microbiome and cardiovascular disease risk. Her lab website can be found here: https://mallott-lab.github.io/ The following are citations for the articles mentioned on today’s show: Mallott, E. K., Sitarik, A. R., Leve, L. D., Cioffi, C., Camargo Jr, C. A., Hasegawa, K., & Bordenstein, S. R. (2023). Human microbiome variation associated with race and ethnicity emerges as early as 3 months of age. PLoS biology, 21(8), e3002230. Cepon‐Robins, T. J., Mallott, E. K., Recca, I. C., & Gildner, T. E. (2023). Evidence and potential drivers of neglected parasitic helminth and protist infections among a small preliminary sample of children from rural Mississippi. American Journal of Human Biology, e23889. Chioma, O. S., Mallott, E., Shah-Gandhi, B., Wiggins, Z., Langford, M., Lancaster, A. W., ... & Drake, W. P. (2023). Low Gut Microbial Diversity Augments Estrogen-Driven Pulmonary Fibrosis in Female-Predominant Interstitial Lung Disease. Cells, 12(5), 766. Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly Cristina Gildee, SoS Co-Host and Producer E-mail: cgildee@uw.edu, Twitter:@CristinaGildee Eric Griffith, HBA Junior Fellow, SoS producer E-mail: eric.griffith@duke.edu

Season 6 premiere. Cara’s back! Chris and Cara chat with Dr. Saige Kelmelis, a biological anthropologist specializing in bioarchaeology, paleodemography, paleoepidemiology, and forensic anthropology. Her research involves the study of human skeletal and dental remains to reconstruct aspects of life, health, disease, identity, and demography. She integrates methods and theory in osteology, paleodemography, epidemiology, and hazard analyses to explore the interplay between human biocultural behavior and infectious disease. She also uses methods from bioarchaeology to reconstruct life histories and health outcomes in modern and past populations through cementochronology. Kelmelis is also a primary investigator on a collaborative project with other professionals, students, and tattoo artists in South Dakota to understand how this ancient practice of body modification affects health outcomes in modern people. Current and ongoing research includes the exploration of mortality risk and disease in monastic, urban, and rural medieval Denmark, the application of cementochronology to reconstruct modern human life histories in Bangladesh, paleodemographic and life history reconstruction of the ancient Maya in the Upper Belize Valley, advancing statistical models in paleodemography, and the short- and long-term impacts of tattooing and body modification on health in past and present populations. Find the publications discussed in today’s episode here: Kelmelis, S., & DeWitte, S. N. (2021). Urban and rural survivorship in Pre- and Post-Black Death Denmark. Journal of Archaeological Science: Reports, 38, 103089. https://doi.org/10.1016/j.jasrep.2021.103089 van Doren, T. P., & Kelmelis, S. (2023). Contextualizing pandemics: Respiratory survivorship before, during, and after the 1918 influenza pandemic in Newfoundland. American Journal of Biological Anthropology, 181(1), 70–84. https://doi-org.offcampus.lib.washington.edu/10.1002/ajpa.24678 ------------------------------ Saige’s email: Saige.Kelmelis@usd.edu ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Cara Ocobock, Website: sites.nd.edu/cara-ocobock/, Email:cocobock@nd.edu, Twitter: @CaraOcobock Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, email: cdlynn@ua.edu, Twitter: @Chris_Ly Cristina Gildee, HBA Junior Fellow, SoS producer: E-mail: cgildee@uw.edu Twitter: @CristinaGildee

The show is currently on summer hiatus as most of our staff work on their research. New episodes will be back in the fall. In the meantime, we have a special bonus episode of the podcast. Prof. Joseph L. Graves Jr. of North Carolina A&T University reads an excerpt from his book A Voice in the Wilderness: A Pioneering Biologist Explains How Evolution Can Help Us Solve Our Biggest Problems. ----------------------------------------------------------------- Here's a link to the Barnes and Noble page for the book: https://www.barnesandnoble.com/w/a-voice-in-the-wilderness-professor-joseph-l-graves-jr-phd/1140835416 ----------------------------------------------------------------- Prof. Graves's faculty page: https://www.ncat.edu/employee-bio.php?directoryID=113858234 ----------------------------------------------------------------- Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, Email: cdlynn@ua.edu, Twitter:@Chris_Ly Mallika Sarma, Sausage of Science Co-Host Website: mallikasarma.com/, Twitter: @skyy_mal Eric Griffith, HBA Junior Fellow, SoS producer E-mail: eric.griffith@duke.edu

Anwesha Pan joins Chris and Mallika to talk about her work on famine and fecundability in Bangladesh as well as the connection between neighborhood-level family poverty and ovarian reserve. This is the season finale -- please check back in the fall for new content! Thank you to Mallika for filling in as co-host this season! ----------------------------------------------------------------- Anwesha Pan is a PhD candidate at the University of Washington and can be reached by e-mail at: anweshap@uw.edu Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, Email: cdlynn@ua.edu, Twitter:@Chris_Ly Mallika Sarma, Sausage of Science Co-Host Website: mallikasarma.com/, Twitter: @skyy_mal Eric Griffith, HBA Junior Fellow, SoS producer E-mail: eric.griffith@duke.edu

Chris welcomes guest co-host, Cristina Gildee, to chat with Sofiya Shreyer, a Ph.D. student in the Anthropology Department at the University of Massachusetts Amherst. Sofiya is passionate about increasing research and education on menopause and other understudied women's health issues, such as PCOS, endometriosis, and sexual wellness. Under the guidance of Dr. Lynnette Sievert, she studies grandmotherhood, variation in caretaking behaviors, and the impact of child-rearing on both grandmaternal and children’s health and well-being. With the outbreak of war in Ukraine, Sofiya’s work toggled to focus on the study of menopause, where she manages and coordinates an ongoing multi-year study on hot flash experiences and brown adipose tissue in perimenopausal and menopausal women. Find her recent book chapter, “Aging and Childcare: A Biocultural Approach to Grandmothering in Ukraine” published in Anthropological Perspectives on Aging here: https://upf.com/book.asp?id=9780813069593 ------------------------------ Sofiya’s email: sshreyer@umass.edu Twitter: @sofiya_shreyer ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, email: cdlynn@ua.edu, Twitter:@Chris_Ly

Chris and Mallika sit down with Sean Prall, an Assistant Professor and evolutionary anthropologist at the University of Missouri. His interests center on human health and reproduction, reproductive decision-making, and evolutionary ecology. He examines costs and trade-offs associated with investments in reproduction. He utilizes a combination of quantitative and qualitative methods, including anthropometrics, demography, endocrinology, actigraphy, validated health surveys, and dyadic peer ratings, alongside semi-structured demographic interviews and measures of social norms. Sean’s work is informed by a mix of evolutionary and behavioral ecology, cultural evolutionary theory, and evolutionary psychology, especially related to reproductive concerns. Sean is also a co-director of the Kunene Rural Health and Demography Project, a contributor to the ENDOW project, and a collaborator on the Shodagor Longitudinal Health and Demography Project. Find the publications discussed in today’s episode here: https://sprall.github.io ------------------------------ Sean’s email: sprall@missouri.edu Twitter: @ssprall ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, email: cdlynn@ua.edu, Twitter:@Chris_Ly Mallika Sarma, Website: mallikasarma.com/, Twitter: @skyy_mal Cristina Gildee, HBA Junior Fellow, SoS producer: E-mail: cgildee@uw.edu

Drs. Karen Rosenberg and Wenda Trevathan join the show to discuss their work examining the evolution of human childbirth and infant helplessness. They also preview some of the content that will appear in their forthcoming (untitled) book. Title suggestions are welcome! Information about their previous publication Costly and Cute can be found here: https://sarweb.org/costly-cute/ -------------------------------------------------------- Karen Rosenberg is a biological anthropologist with a specialty in paleoanthropology. She received her degrees from the University of Chicago (B.A. 1976) and the University of Michigan (M.A. 1980, Ph.D., 1986) and has taught at the University of Delaware since 1987. She has studied human fossils and modern human skeletal material in museums in Europe, North America, Asia and Africa. Her research interests are in the origin of modern humans and the evolution of modern human childbirth and human infant helplessness. She has published in edited volumes as well as anthropological and clinical obstetrical journals. Wenda Trevathan is Regents Professor (emerita) of Anthropology at New Mexico State University and a biological anthropologist who earned her PhD at the University of Colorado, Boulder. Her research focuses on the evolutionary and biocultural factors underlying human reproduction including childbirth, maternal behavior, sexuality, and menopause. Her primary publications include works on the evolution of childbirth and evolutionary medicine. She is a co-editor of two collections of works on evolutionary medicine (Oxford University Press, 1999 and 2008) and published the book Ancient Bodies, Modern Lives: How Evolution Has Shaped Women’s Health (Oxford University Press) in 2010. She currently serves as a Senior Scholar at the School for Advanced Research in Santa Fe, New Mexico, where she is writing a book on infancy in evolutionary perspective with Karen Rosenberg. ------------------------------------------------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, Email: cdlynn@ua.edu, Twitter:@Chris_Ly Mallika Sarma, Sausage of Science Co-Host Website: mallikasarma.com/, Twitter: @skyy_mal Eric Griffith, HBA Junior Fellow, SoS producer E-mail: eric.griffith@duke.edu

Chris and Mallika chat with Florence Lee, a PhD candidate at the University of Albany (SUNY), to discuss her collaboration with the Akwasane Task Force on the Environment. Their work investigates pollutant exposure and autoimmunity in Akwesasne Mohawk women. In this episode, Florence discusses the biological consequences of a century of DDT and PCB contamination along the St. Lawrence River for the indigenous women who continue to live there. ------------------------------ Find the publication discussed in today’s episode here: “Associations between autoimmune dysfunction and pollutants in Akwesasne Mohawk women: Dichlorodiphenyltrichloroethane and polychlorinated biphenyl exposure” https://doi.org/10.1002/ajhb.23773 ------------------------------ Florence's email: flee2@albany.edu ------------------------------ Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, email: cdlynn@ua.edu, Twitter:@Chris_Ly Mallika Sarma, Website: mallikasarma.com/, Twitter: @skyy_mal Cristina Gildee, HBA Junior Fellow, SoS producer: E-mail: cgildee@uw.edu

Elizabeth Holdsworth, PhD, joins the Sausage of Science to chat about her new paper titled “Maternal–infant interaction quality is associated with child NR3C1 CpG site methylation at 7 years of age.” The paper can be found at the AJHB website here: https://onlinelibrary.wiley.com/doi/10.1002/ajhb.23876 ------------------------------------- Dr. Elizabeth Holdsworth is a Postdoctoral Research Associate in the Meehan lab at Washington State University. Elizabeth is a researcher of mother-infant relationships, infant growth, and the early life origins of health. She received her PhD in Anthropology from the University at Albany, SUNY, for her biocultural anthropological research into how mothers’ unequal exposure to stress can affect maternal health, as well as contribute to small changes in infant growth through epigenetic mechanisms. Her current research identifies how maternal-infant dynamics and maternal stress may contribute to variation in the milk microbiome. ------------------------------------- Contact the Sausage of Science Podcast and Human Biology Association: Facebook: www.facebook.com/groups/humanbiologyassociation Website: humbio.org/, Twitter: @HumBioAssoc Chris Lynn, HBA Public Relations Committee Chair, Website: cdlynn.people.ua.edu/, Email: cdlynn@ua.edu, Twitter:@Chris_Ly Mallika Sarma, Sausage of Science Co-Host Website: mallikasarma.com/, Twitter: @skyy_mal Eric Griffith, HBA Junior Fellow, SoS producer E-mail: eric.griffith@duke.edu