- B.S. Biology, Virginia Tech, Blacksburg, VA, USA, 1990
- M.S. Marine Biology, Nova Southeastern University Oceanographic Center, Dania, FL, USA, 1992
- Ph.D. University of South Florida, FL, USA, 1997
Dr. Marshall is an Associate Professor of Marine Biology & Wildlife and Fisheries Science at Texas A&M University. His research interests include comparative functional organismal biology and ecomorphology, and integration of morphology, physiology, and behavioral performance studies of vertebrates to understand organismal adaptations to their environment. Such studies integrate several research tools including classic animal dissections, histology, electron microscopy, kinematics and motion analysis, electromyography and other electrophysiological techniques. Recent research topics include investigations of the feeding apparatus and foraging behavior in benthic foraging marine mammals. Other interests include comparative neurobiology, evolution and function of sensory systems.