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Department of


Greg Pregill, PhD

Professor, Biology

Greg Pregill, PhD, joined the faculty in 1993 after a nearly life-long passion for natural history led him on research expeditions to tropical and subtropical islands around the world. Following graduate school, he received a two-year appointment as a Fellow in residence at the United States National Museum, Smithsonian Institution. He next served as curator and chair of the Department of Herpetology at the San Diego Natural History, and for a time was deputy director for Science.  Pregill continues his research on insular ecosystems and teaches related courses on biodiversity and vertebrate evolution.


PhD, University of Kansas, Systematics and Ecology
MS, San Diego State University, Zoology
BA, Baylor University, Biology

Scholarly and Creative Work

Pregill studies island vertebrates, notably amphibians and reptiles. Fieldwork has taken him to almost all of the islands in the Caribbean, and to many others in the south and western Pacific. By merging paleontology with biogeography, he assesses the long-term changes in vertebrate species and populations, especially those changes that occurred during the transition from precultural to cultural environments. This has led to a large body of published work including articles and monographs, as well as invited participation in numerous international conferences and symposia. He is co-editor of the widely cited book Phylogenetic Relationships of the Lizard Families (1989, Stanford University Press), and served in several editorial capacities for journals and scientific societies.

Teaching Interests

Pregill teaches courses in biodiversity, evolution, biogeography, vertebrate natural history, and the evolution of vertebrate structure. He has also team-taught cross-disciplinary courses on the biological consequences of the peopling of the New World.