Professor emeritus in the Department of Biology at the University of Virginia, Fred Diehl has more than 30 years of experience teaching biology at all levels with a focus on zoology, ecology and marine sciences, with a specialization in invertebrate biology. A firm believer in learning from direct observation and firsthand exposure to nature, Diehl has taught more than 25,000 undergraduate students, 700 of whom have participated in his renowned marine biology and coral reef ecology course in the Bahamas.

A member of Dartmouth’s Religion Department since 1969, Ronald Green is currently the Eunice & Julian Cohen Professor for the Study of Ethics and Human Values. His research focuses on how religious traditions shape political, economic, and social conditions of communities around the world. A popular and inspiring instructor, he received a distinguished teaching award from the graduating class of 1980, and in 2005 he was named a Guggenheim Fellow. He has traveled extensively in Latin America, Europe, North and West Africa, and South and Southeast Asia.

Alan Mann is Professor of Anthropology at Princeton University, where he has taught since 1986. He has been leading digs in Southern France regularly since 1990, when he worked as a Fulbright Scholar at the University of Bordeaux and helped excavate an ancient Neanderthal hunting camp. His sense of wonder about human origins continues to endear him to students and colleagues alike. He looks forward to sharing his insights about human evolution and the migration of populations that settled in Easter Island, Samoa, Tanzania, and other destinations.

Lynn Garrison's true expertise as an expedition leader shines through with her calm, consistent and inspiring leadership. She's circled the globe countless times and particularly enjoys highlighting new discoveries for our guests at every stop, ensuring that every trip is extraordinary. She has 20 years of experience in travel and has been a member of our expedition staff since 1999. Garrison is a graduate of Oklahoma State University and the International Tour Management Institute in San Francisco and currently lives in Nyack, N.Y.