The Department of Integrative Biology is committed to providing the best training and education in the field of biology for UW-Madison undergraduate and graduate students.

With 19 faculty and 14 affiliated faculty members, research and education in the Department of Integrative Biology spans all levels of biological organization, considers a diverse range of taxa and systems, and addresses a wide array of basic and applied research questions.

Explore our Majors

Biology (L&S)

The biology major is designed for students who are interested in a broad exposure to the concepts and methodologies of the biological sciences, as well as those interested in a more specific sub-discipline.

Molecular Biology

The molecular biology major is a sub-discipline of biology that studies the composition, structure, and interactions of molecules that carry out biological processes essential for cellular functioning.


The neurobiology major is a sub-discipline of biology that examines cells of the nervous system and the organization of these cells into functional circuits that process information and mediate behavior.


The zoology major is a sub-discipline of biology that examines the organization of animals, from the cellular to the systems level, including the study of interactions of animals with their environment.



  • The Department of Integrative Biology has a number of scholarships & awards available to eligible undergraduates and graduate students. Deadline to apply is April 1.
  • Students: Do you have questions about spring enrollment (wait lists, swapping sections, course openings, etc.)? For Zoology 151/153-152, contact Jean Heitz ( For all other Zoology courses, contact Nazan Gillie (
  • Looking to take Zoology courses this summer term? See the updated 2019 Summer Course Listing.
  • Scholarships are available for summer term. Applications open February 15. Click here for more information.
  • To enroll in a Directed Study (199, 299, 699), Honors Thesis (681, 682), or Senior Thesis (691, 692) in iBio, please fill out this Course Authorization Form.