PROFESSOR, Department of Biology, University of Virginia 2014-present; DEPT. CHAIR, 2020-2022
CAVALIER DISTINGUISHED TEACHING ASSOCIATE PROFESSOR, 2006-2008
ASSOCIATE PROFESSOR, Department of Biology, University of Virginia 2005-2014
ASSISTANT PROFESSOR, Department of Biology, University of Virginia 1998-2005
RESEARCH ASSISTANT PROFESSOR, Department of Zoology, Duke University 1987-1998
ASSISTANT DEAN, Natural Sciences, Duke University 1987-1990
NIH POSTDOCTORAL FELLOW, Department of Zoology, Duke University 1984-1987