David Vleck David Vleck is Adjunct Associate Professor and Research Scientist, Department of Ecology, Evolution and Organismal Biology at Iowa State University. He received a Bachelor's degree from Pomona College and a Ph. D. in biology from the University o California at Los Angeles. He has taught lecture and laboratory courses in introductory biology, animal biology and physiology at the University of Arizona from 1989-1994 and at Iowa State University since 1994. He has published research articles on energetics, water balance, developmental biology, and aging of vertebrate animals and currently works on telomeres, oxidative damage, and mechanisms of aging. Read More Read Less