· Professor of Integrative Biology, University of California, Berkeley1995–
· Associate Professor of Integrative Biology, University of California, Berkeley1991–1995
· Assistant Professor of Zoology, University of California, Berkeley1986–1991
· Professor Emeritus, University of California, Berkeley1986–
· Ph.D. in Biology, State University of New York at Buffalo1984–
· Postdoctoral Lectureship, The University of Chicago1984–1986
· Master's Degree in Biology, State University of New York at Buffalo1982–
· Bachelor's degree, State University of New York at Buffalo1979–
· National Science Foundation Research Assistant, State University of New York at Buffalo1979–1984
· Teaching Assistant, State University of New York at Buffalo1979–1984