Siobhán M Mattison

Associate Professor
Director, Human Family and Evolutionary Demography Lab

Photo: Siobhán M Mattison

Evolutionary Anthropology

At UNM since 
Curriculum vitae

Recent Courses:

  • Human Behavioral Ecology (ANTH 360)
  • The Human Life Course (ANTH 1170)
  • Field Methods in Evolutionary Medicine and Public Health (ANTH 450)
  • Evolutionary Demography (ANTH 450/550)
  • Evolutionary Perspectives on Kinship (ANTH 450/550)
  • Research Design & Proposal Writing (ANTH 550)


BA, Cornell University (2003)

MA, University of Washington (2007)

PhD, University of Washington (2010)
Dissertation: “Demystifying the Mosuo: The behavioral ecology of China’s ‘last matrilineal’ society”.


Kinship, parenting, reproduction, social inequality, human behavioral ecology, demography, mixed methods, Vanuatu, China

Recent Publications:

Mattison Siobhán M., Shenk Mary K., Thompson Melissa Emery, Borgerhoff Mulder Monique, Fortunato Laura. 2019. The evolution of female-biased kinship in humans and other mammals. Philosophical Transactions of the Royal Society B: Biological Sciences 374:20190007.

Mattison Siobhán M., Quinlan Robert J., Hare Darragh. 2019. The expendable male hypothesis. Philosophical Transactions of the Royal Society B: Biological Sciences 374:20180080.

Mattison SM, Seabright E, Reynolds AZ, Cao J (Bill), Brown MJ, Feldman MW. 2018. Adopted daughters and adopted daughters-in-law in Taiwan: a mortality analysis. Royal Society Open Science 5:171745.

Mattison SM, Moya C, Reynolds A, Towner MC. 2018. Evolutionary demography of age at last birth: integrating approaches from human behavioural ecology and cultural evolution. Phil Trans R Soc B 373:20170060.

Mattison SM, Smith EA, Shenk MK, Cochrane EE. 2016. The evolution of inequality. Evol Anthropol 25:184–199.

Mattison SM, Sear R. 2016. Modernizing evolutionary anthropology. Hum Nat 27:1–16.

Mattison SM, Beheim B, Chak B, Buston P. 2016. Offspring sex preferences among patrilineal and matrilineal Mosuo in Southwest China revealed by differences in parity progression. Royal Society Open Science 3:160526.

Mattison SM. 2016. Matrilineal and matrilocal systems. In: Naples N, Hoogland RC, Wickramasinghe M, Wong WCA, editors. The Wiley Blackwell Encyclopedia of Gender and Sexuality Studies. Hoboken, NJ: John Wiley & Sons, Ltd. p 1655–1660. Available from:

Mattison SM. 2016. Male-provisioning hypothesis. In: Weekes-Shackelford V, Shackelford TK, Weekes-Shackelford VA, editors. Encyclopedia of Evolutionary Psychological Science. Cham: Springer International Publishing. p 1–6. Available from:

Mattison SM, Wander K, Hinde K. 2015. Breastfeeding over two years is associated with longer birth intervals, but not measures of growth or health, among children in Kilimanjaro, TZ. Am J Hum Biol 27:807–815.