Kenneth M Weiss is Evan Pugh Professor of Anthropology and Genetics at Penn State University. After majoring in mathematics at Oberlin College, he received graduate training in Biological Anthropology and genetics at the University of Michigan, where he received his PhD in 1972.  He has written widely on evolutionary principles and biology, human genetics and the complexities of the relationships between genes and traits like human disease or developmental patterns.  He writes a regular column on problems and issues in evolution and genetics for the journal "Evolutionary Anthropology," and is the author of "Genetic Variation and Human Disease: Principles and Evolutionary Approaches."  He has also been a professional meteorologist.

Anne Buchanan is Senior Research Scientist in the Department of Anthropology at Penn State University.  She has a BA in Anthropology from the University of Massachusetts and a DrPH in Population Studies from the University of Texas School of Public Health.  She has worked on population-scale problems in relation to health and genetics, and on molecular and developmental genetics, and has published in a diversity of areas, including anthropology, demography, epidemiology, genetic epidemiology, and developmental genetics.