- Welcome to the Department of Biological Sciences Graduate student, Mary Robinson, with steelhead at Dworshak National Fish Hatchery The Department of Biological Sciences offers B.A. and B.S. degrees in biology and M.S. and Ph.D. degrees in zoology or botany. A non-thesis master's degree (M.N.S.) is also available for students who plan to teach in secondary schools or junior colleges. Research in ...www.uidaho.edu/LS/BioSc