Sausage of Science
Human Biology Association
The Human Biology Association is a vibrant nonprofit scientific organization dedicated to supporting and disseminating innovative research and teaching on human biological variation in evolutionary, social, historical, and environmental context worldwide.
Episodes
Mentioned books

Sep 2, 2025 • 36min
SoS 247: Intergenerational Signals w/ Dr. Haley Ragsdale: A DOHaD Lens on Human Reproduction
Chris and Courtney sit down with Dr. Haley Ragsdale to discuss intergenerational signals of matrilineal experience. Haley completed her dissertation in Anthropology at Northwestern University in 2023 under the guidance of Dr. Chris Kuzawa. She is now a postdoctoral researcher in the Anthropology Department at the University of Illinois Chicago, collaborating with Dr. Katie Starkweather on fascinating projects related to maternal and child health among the Shodagor of Bangladesh. Haley’s work is deeply rooted in evolutionary theory and the developmental origins of health and disease (DOHaD) framework, with a focus on human reproductive biology. She explores how energetic experiences shape lifetime metabolic strategies and how reproductive investments are influenced by varying environmental contexts. Currently, she’s diving into the mechanisms behind intergenerational signals of matrilineal experience and predictive adaptive responses in humans.
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Find the paper discussed in this episode:
Ragsdale, H. B., Lee, N. R., & Kuzawa, C. W. (2024). Evidence that highly canalized fetal traits are sensitive to intergenerational effects of maternal developmental nutrition. American Journal of Biological Anthropology, 183(4), e24883. https://doi.org/10.1002/ajpa.24883
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Contact Haley: E-mail: hragsd2@uic.edu website: https://haleyragsdale.squarespace.com/; Google Scholar
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Host
Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly
Courtney Manthey, Guest-Co-Host, Website: holylaetoli.com/ E-mail: cpierce4@uccs.edu, Twitter: @HolyLaetoli
Cristina Gildee, SoS Co-Producer, HBA Junior Fellow
Website: cristinagildee.org, E-mail: cgildee@uw.edu,

Jul 31, 2025 • 38min
SoS 246: Discriminación, estrés y salud en población migrante: un estudio multinacional con Isaura Cruz
La doctora Isaura Cruz es bio-antropóloga y sus intereses de investigación se centran en la amplia contribución del medio ambiente a la salud y el bienestar humanos. Ha examinado el desarrollo de las condiciones cardiovasculares y metabólicas entre los indígenas mexicanos P'urépecha en sus comunidades de origen en Michoacán, México y las comunidades de acogida en Carolina del Norte, EE.UU. Isaura utiliza un enfoque de métodos mixtos que incluye elementos de la nutrición, la salud pública, la genómica, aplicando siempre una lente biocultural.
La investigación de que la conversaremos hoy es parte de su trabajo de tesis doctoral, titulada “Migración Internacional y Salud: P’urépecha en EEUU y México”. En particular hablaremos de un estudio binacional que realizaron entre los años 2018 y 2019, sobre la salud cardiometabólica en la comunidad P’urépecha, un pueblo originario del estado de Michoacán, México. El estudio consiste en una comparación de los factores de riesgo de salud cardiometabólica (CHM) entre quienes viven en sus comunidades de origen en Michoacán, México, y quienes viven en Carolina del Norte, EE. UU. Este trabajo integra perspectivas y métodos de la antropología, la salud pública, la demografía y la sociología, entre otros, para comprender mejor la salud en el contexto de la migración internacional.
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Dr. Isaura Cruz is a bioanthropologist whose research focuses on the environmental factors that contribute to human health and well-being. She has studied the development of cardiovascular and metabolic conditions among P'urhépecha indigenous Mexicans in their home communities in Michoacán, Mexico and in host communities in North Carolina, USA. Dr. Cruz uses a mixed-methods approach that incorporates nutrition, public health, and genomics while applying a biocultural lens.
The research we will discuss today is part of her doctoral dissertation, entitled International Migration and Health: P'urhépecha in the US and Mexico." Specifically, we will discuss a binational study conducted between 2018 and 2019 examining cardiometabolic health in the P'urhépecha community, an indigenous group in the state of Michoacán, Mexico. This study compares cardiometabolic health risk factors between individuals residing in their home communities in Michoacán and those residing in North Carolina. This work integrates perspectives and methods from anthropology, public health, demography, sociology, and other fields to better understand health in the context of international migration.
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Contact Dr. Cruz: igodinezcruz@scu.edu
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Anahi Ruderman, SoS Co-Producer, HBA Junior Fellow
E-mail: ruderman@cenpat-conicet.gob.ar
Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly

Jul 22, 2025 • 33min
SoS 245: Anamika Nanda - From Pool Laps to Brain Maps
In this episode, Chris and Cristina talk with Anamika Nanda, a PhD student in the Department of Biological Sciences and a Women in Science and Engineering (WiSE) Fellow at the University of Southern California. Anamika’s research, conducted under the guidance of Dr. David Raichlen, examines how physical activity affects neurological health across various genotypes.
Before beginning her doctoral work, Anamika earned her Bachelor's degree in Medical Anthropology and Global Health from the University of Washington. Her award-winning honors thesis examined the relationship between motivation, physical activity, and psychosocial stress, and its impact on telomere length in collegiate swimmers and non-collegiate athletes.
We discuss her path into science, her interdisciplinary approach to understanding brain health, and how her work connects athletics, stress, and aging. Anamika’s research has been recognized with an NSF-GRFP Honorable Mention, the UW Anthropology Department’s Best Honors Thesis Award, and a Mary Gates Research Scholarship.
Tune in for an insightful conversation on the biology of movement, the value of interdisciplinary research, and what it means to study sports from a holistic perspective.
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Find the paper discussed in this episode:
Nanda, A., Logan, A., & Tennyson, R. L. (2024). The influence of perceived stress and motivation on telomere length among NCAA swimmers. American Journal of Human Biology, 36(9), e24091. https://doi.org/10.1002/ajhb.24091
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Contact Anamika: E-mail: anamikan@usc.edu; LinkedIn: https://www.linkedin.com/in/anamika-nanda-168b9b199
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Host
Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly
Cristina Gildee, Co-host, SoS Co-Producer, HBA Junior Fellow
Website: cristinagildee.org, E-mail: cgildee@uw.edu

Jul 8, 2025 • 42min
SoS 244: Emily Barron discusses early life stress and its impact on brain development from an evolutionary perspective
Emily is a PhD student and biological anthropologist at Northwestern University and a Student Representative for the Human Biology Association. She studies brain development from an evolutionary perspective, focusing on how early life stress shapes cognitive, behavioral, social, and physiological development. Her dissertation examines how early adversity and parenting influence executive function, learning, and memory, exploring potential adaptive outcomes of early stress. Emily is also pursuing research on brain energetics during development in early childhood and developing field-friendly methods to study brain energetics for anthropologists. She’s passionate about bringing ideas and methods from neuroscience into the field of anthropology to better understand what shapes human behavior and biology.
Contact Emily Barron: emilybarron2026@u.northwestern.edu
Twitter: @emilyhbarron
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter: @Chris_Ly
Courtney Manthey, Guest-Co-Host, Website: holylaetoli.com/ E-mail: cpierce4@uccs.edu, Twitter: @HolyLaetoli
Anahi Ruderman, SoS Co-Producer, HBA Junior Fellow
E-mail: ruderman@cenpat-conicet.gob.ar, Twitter: @ani_ruderman

Jul 5, 2025 • 41min
SoS 243: Finding Home and Well-Being: Perspectives on Aging and Identity with Seth Dornisch
Chris and Cristina sit down with anthropologist and clinical speech-language pathologist Seth Dornisch, whose work bridges evolutionary theory, biocultural analysis, and clinical practice. Seth's dissertation research examines how to improve the quality of life and well-being for individuals experiencing neurological decline, with a focus on reducing suffering and promoting meaningful, positive experiences throughout the human lifespan. He recently completed his PhD in Medical Anthropology at the University of Massachusetts Amherst and is now an Assistant Professor in the Department of Communication Disorders at SUNY New Paltz.
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Find the Papers discussed in this episode:
Dornisch, S., Sievert, L., Sharmeen, T., Begum, K., Muttukrishna, S., Chowdhury, O., & Bentley, G. (2024). Religious minority identity associates with stress and psychological health among Muslim and Hindu women in Bangladesh and London. American Journal of Human Biology, 36(12), e24057.
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Contact Seth: E-mail: sdornisch@umass.edu
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Host
Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly
Cristina Gildee, Co-host, SoS Co-Producer, HBA Junior Fellow
Website: cristinagildee.org, E-mail: cgildee@uw.edu

Jun 21, 2025 • 43min
SoS 242: Pablo Nepomnaschy on Equity in Maternal Health Research
Chris and Cristina interview Dr. Pablo Nepomnaschy, a professor in the Faculty of Health Sciences at Simon Fraser University and a Michael Smith Foundation for Health Research Scholar. Originally from Argentina, Dr. Nepomnaschy began his academic journey with a degree in Biology from the University of Patagonia. He went on to earn his Ph.D. in Biological Anthropology and Ecology from the University of Michigan, where he also trained in reproductive sciences and social research. He completed his postdoctoral work at the National Institute of Environmental Health Sciences and is an alum of the renowned LIFE Program at the Max Planck Institute in Berlin. Dr. Nepomnaschy’s research explores how social, ecological, and biological factors interact to shape human reproductive biology and health across the life course.
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Find the Papers discussed in this episode:
Rowlands, A., Juergensen, E. C., Prescivalli, A. P., Salvante, K. G., & Nepomnaschy, P. A. (2021). Social and Biological Transgenerational Underpinnings of Adolescent Pregnancy. International Journal of Environmental Research and Public Health, 18(22), 12152. https://doi.org/10.3390/ijerph182212152
Dinsdale, N., Nepomnaschy, P., & Crespi, B. (2021). The evolutionary biology of endometriosis. Evolution, medicine, and public health, 9(1), 174-191.
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Contact Dr. Nepomnaschy: E-mail: pablo_nepomnaschy@sfu.ca
Listen to a previous episode with Pablo: SoS #72
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Host
Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly
Cristina Gildee, Co-host, SoS Co-Producer, HBA Junior Fellow
Website: cristinagildee.org, E-mail: cgildee@uw.edu

Jun 12, 2025 • 48min
SoS 241: Navigating hominin variability in Asia with Christopher Bae
Christopher Bae is taking us on a journey to meet the hominids of Asia's past. Dr. Bae is a distinguished paleoanthropologist from the University of Hawai’i at Mānoa whose research focuses on human evolution in East Asia. Born in Korea and adopted by an American family, his unique personal journey sparked an early interest in race, human variation, and the deep history of our species. What began as a search for his own roots led him to a career dedicated to reconstructing the past—much like paleoanthropologists do when piecing together humanity’s evolutionary story. Dr. Bae has conducted extensive field and laboratory research across Korea, Japan, and China, collaborating on projects that span hominin fossils, vertebrate taphonomy, and lithic analysis. His work bridges disciplines in the social and natural sciences, providing a comprehensive perspective on Pleistocene hominin morphological and behavioral variation, particularly in Homo erectus and both archaic and modern Homo sapiens. With approximately 150 publications and over $1.5 million in extramural funding, Dr. Bae is a leading voice in understanding human evolution in East Asia.
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Find the papers discussed in this episode:
Bae, C. J., Liu, W., Wu, X., Zhang, Y., Ni, X. (2023). "Dragon man" prompts rethinking of Middle Pleistocene hominin systematics in Asia. Innovation (Camb), 4(6):100527. doi: 10.1016/j.xinn.2023.100527.
Bae, C.J., Wu, X. Making sense of eastern Asian Late Quaternary hominin variability. Nat Commun 15, 9479 (2024). https://doi.org/10.1038/s41467-024-53918-7
Contact Dr. Bae: cjbae@hawaii.edu
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Co-Host Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly
Courtney Manthey, Guest Co-Host, Website: holylaetoli.com/ E-mail: cpierce4@uccs.edu, Twitter: @HolyLaetoli
Anahi Ruderman, Guest Co-Host , SoS Co-Producer, HBA Junior Fellow, E-mail: aniruderman@gmail.com, Twitter: @ani_ruderman

Jun 6, 2025 • 1h 2min
SoS 240: Agustín Fuentes on his new book, Sex is a Spectrum: The Biological Limits of the Binary
Bio
Chris and Cristina interview Agustín Fuentes about his new book, Sex Is a Spectrum: The Biological Limits of the Binary (now available). Prof. Fuentes is an anthropologist whose research focuses on the biosocial, delving into the entanglement of biological systems with the social and cultural lives of humans, our ancestors, and a few of the other animals with whom humanity shares close relations. From chasing monkeys in jungles and cities, to exploring the lives of our evolutionary ancestors, to examining human health, behavior, and diversity across the globe, Professor Fuentes is interested in both the big questions and the small details of what makes humans and our close relations tick. Earning his BA/BS in Anthropology and Zoology and his MA and PhD in Anthropology from UC Berkeley, he has conducted research across four continents, multiple species, and two million years of human history. His current projects include exploring cooperation, creativity, and belief in human evolution, multispecies anthropologies, evolutionary theory and processes, and engaging race and racism. Fuentes is an active public scientist, a well-known blogger, lecturer, tweeter, and an explorer for National Geographic. Fuentes was recently awarded the Inaugural Communication & Outreach Award from the American Association of Biological Anthropologists, the President’s Award from the American Anthropological Association, and elected to the American Academy of Arts and Sciences.
Dr. Fuentes previously appeared in episodes 48 & 85 in which he shared his origin story & read an excerpt from a previous book.
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Find the Books discussed in this episode:
Fuentes, A. (2025) Sex is a Spectrum: The Biological Limits of the Binary Princeton University Press
Fuentes, A. (2022) Race, Monogamy, and other lies they told you: busting myths about human nature 2nd edition. University of California Press
Fuentes, A, (2019) Why We Believe: Evolution and the Human Way of Being Yale University Press/Templeton Press
Fuentes, A. (2017) The Creative Spark: how imagination made humans exceptional Dutton/Penguin 2017 Romanian Translation (Publica), 2017 Chinese Translation (CITIC Publishing House), 2018 Spanish Translation (Ariel/Planeta), 2018 Korean Translation (Chungrim Publishing Co.)
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Contact Dr. Fuentes: Website: https://afuentes.com; E-mail: afuentes2@Princeton.edu; Blue Sky @anthrofuentes.bsky.social; Twitter/X: @Anthrofuentes
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Chris Lynn, Host
Website: cdlynn.people.ua.edu/, E-mail: cdlynn@ua.edu, Twitter:@Chris_Ly
Cristina Gildee, Co-host, SoS Co-Producer, HBA Junior Fellow
Website: cristinagildee.org, E-mail: cgildee@uw.edu

May 28, 2025 • 41min
SoS 239: Discutiendo la insitucionalidad de la Antropología Biológica con Rolando González-José
Es este episodio especial conversamos con Rolando González-José sobre la institucionalidad de la Antropología Biológica (y de la ciencia) en distintos contextos, en especial en la América Latina del presente. Rolando González José es Investigador Principal del CONICET (Argentina) y Coordinador del Programa de Referencia y Biobanco Genómico de la Población Argentina.
Se graduó de Biólogo en la Universidad Nacional de la Patagonia, y realizó su Doctorado en Biología Humana en la Universidad de Barcelona, España.
Fue dos veces Vicedirector del Centro Nacional Patagónico, el mayor centro de investigación multidisciplinaria del CONICET en la Patagonia. También fue Director del Instituto Patagónico de Ciencias Sociales y Humanas. Fue presidente de la Asociación Argentina de Antropología Biológica entre 2009 y 2011, y Vicepresidente de la Asociación Latinoamericana de Antropología Biológica (entre 2013 y 2015).
Presenta más de 120 publicaciones en distintas revistas científicas incluyendo Nature, Proceedings of the National Academy of Sciences (USA), Nature Communications, Journal of Human Evolution, American Journal of Human Biology, PLoS Genetics, entre otras. En el año 2004 fundó el Grupo de Investigación en Biología Humana, integrado por 15 profesionales entre los que se cuentan antropólogos, genetistas, nutricionistas, biólogos, médicos e informáticos. Sus intereses de investigación giran en torno a la genética de poblaciones, la evolución de la variación craneofacial eh homínidos, el poblamiento Americano, las poblaciones cosmopolitas de Latinoamérica y el desarrollo de dispositivos basados en tecnología de imagen para aplicaciones biomédicas.
Contact Dr. González-José: rolando@cenpat-conicet.gob.ar
Twitter: @RoloGonzalezOK Facebook: facebook.com/rolando.gonzalezjose
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Cristina Gildee, Co-Host, SoS Producer, HBA Junior Fellow
Website: cristinagildee.org, E-mail: cgildee@uw.edu, Twitter:@CristinaGildee
Anahi Ruderman, Co-Host, SoS Co-Producer, HBA Junior Fellow
E-mail: aniruderman@gmail.com, Twitter: @ani_ruderman
Miguel Ochoa, Guest Co-Host
E-mail: mochoa88@uw.edu,

May 14, 2025 • 41min
SoS 238: Rethinking the obstetric dilemma with Anna Warrener
Host Courtney Manthey unpack the obstetric dilemma with Dr. Anna G. Warrener. Dr. Anna G. Warrener earned her PhD from Washington University in St. Louis in 2012. She is now an assistant professor of anthropology at the University of Colorado Denver. She specializes in human evolutionary biology, biomechanics, and the evolution of locomotion. Her research explores how skeletal morphology influences movement, with a particular focus on the biomechanics of the pelvis, gait, and bipedal efficiency. Through experimental and comparative approaches, Dr. Warrener investigates how evolutionary pressures have shaped human locomotion and what these adaptations reveal about our ancestors. She is also passionate about mentoring students and fostering interdisciplinary research that bridges anthropology, biology, and biomechanics.
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Find the paper discussed in this episode:
Warrener, A. (2023). The multifactor pelvis: An alternative to the adaptationist approach of the obstetrical dilemma. Evolutionary Anthropology, 32(5), 260-274.
https://doi.org/10.1002/evan.21997
Warrener, A. (2024). Human lower limb muscle cross sectional area scales with positive allometry reflecting bipedal evolutionary history. Frontiers in Earth Science. https://doi.org/10.3389/feart.2023.1301411
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Contact the Sausage of Science Podcast and Human Biology Association:
Facebook: facebook.com/groups/humanbiologyassociation/, Website: humbio.org, Twitter: @HumBioAssoc
Courtney Manthey, Host, Website: holylaetoli.com/ E-mail: cpierce4@uccs.edu, Twitter: @HolyLaetoli
Anahi Ruderman, SoS Co-Producer, HBA Junior Fellow
E-mail: aniruderman@gmail.com, Twitter: @ani_ruderman


