She chaired Organismal Biology from 1970 to 1994, and in 1983, Marion was promoted to Associate Professor and became the first female tenured faculty member of the UW–Madison Department of Zoology, gaining full professorship in 1991.
She chaired Organismal Biology from 1970 to 1994, and in 1983, Marion was promoted to Associate Professor and became the first female tenured faculty member of the UW–Madison Department of Zoology, gaining full professorship in 1991.