Don Wilson

Don Wilson is Curator Emeritus of Mammals at the Smithsonian's National Museum of Natural History and was named senior scientist in January 2000. Don was director of the Smithsonian's Biodiversity Programs for ten years. A distinguished mammalogist and an internationally recognized authority on bats, he earned his Ph.D. in Biology from the University of New Mexico. He is the author of over 240 scientific publications and 25 books, including the highly acclaimed Series Handbook of Mammals of the World. For the last 40 years, his work has taken him around the world conducting field work and research. He has led tours for Smithsonian Journeys to most of the world's greatest natural history destinations, from Antarctica to Africa. Don loves to share his passion for the natural world, and his easygoing nature, sense of humor, and excellent presentations have earned him much praise and a loyal following from Smithsonian travelers.

Scott Burns

Scott Burns is a Professor Emeritus of Geology and Past-Chair of the Dept. of Geology at Portland State University where he just completed his 28th year of teaching. He was also Associate Dean of the College of Liberal Arts and Sciences at P.S.U. from 1997-1999. Scott has been teaching for 48 years, with past positions in Switzerland, New Zealand, Washington, Colorado and Louisiana. Dr. Burns specializes in environmental and engineering geology, geomorphology, soils, and Quaternary geology. Scott has won many awards for outstanding teaching, the most significant being the Faculty Senate Chair Award at Louisiana Tech University in 1987, the Distinguished Faculty Award from the Portland State Alumni Association in 2001, and the George Hoffmann Award from PSU in 2007. Based on his national leadership performance Scott was chosen to be a fellow of the Geological Society of America (2004) and a fellow with the Kellogg National Fellowship Program (1990 – 1993). He was president of the Downtown Rotary Club of Portland, Oregon’s oldest and largest Rotary club in 2009. Scott is a 6th generation Oregonian who grew up in Beaverton and is very happy to be "home" after a 25 year hiatus! He actively helps local TV, radio stations and newspapers bring important geological news to the public. Scott enjoys all sports, especially basketball, running, skiing, hiking, swimming, tennis, and golf.

Wayne Ranney

Wayne Ranney is a geologist and writer who is a veteran of expedition travel, having journeyed to and lectured on all od Earth’s seven continents. He is the recipient of the 2018 American Association of Petroleum Geologists “Geosciences in the Media Award” and has received other national and regional honors for his writing, lectures, blog postings and expeditionary guiding. His foreign and domestic travels have taken him to South America (Patagonia, Tierra del Fuego, and the Amazon), Australia and New Zealand, the Polar regions (Antarctica, Iceland and Greenland), and desert landscapes in Africa, Asia, the Atacama and the American Southwest.

With a lifelong interest in the earth sciences, Wayne specializes in making the fascinating story of our planet come alive for fellow travelers. He was elected to the Explorers Club and has visited more than 85 countries. Wayne is a retired professor of geology who lives in Flagstaff, Arizona near his beloved Grand Canyon. He is passionate about sharing his vast knowledge of earth history with others in an easy-going and informal style, yet he is a well-respected author of numerous award-winning books and articles. He enjoys languages, hiking, river running, photography, conversation, and anything that allows him to get outdoors with others in seeing the varied and interesting landscapes of our beautiful planet.