Whole-organism biology encompassing ecology, evolution, and behavior.


  • Ecology, evolution and behavior graduate program ranked seventh in nation (2014 U.S. News and World Report).
  • One of the largest and most diverse systematics collections in the country with over four million specimens, including reptiles and amphibians (80,000), fishes (1 million), insects (2 million), birds and mammals (6,000), and vascular plants (1.1 million).
  • Faculty are among the most-cited faculty in their fields, and among the most-cited faculty at the university.
  • Thirteen faculty have at least 10,000 citations in Google Scholar.
  • Nearby Brackenridge Field Laboratory provides juxtaposition of lab and field resources very near campus to support research and field courses.

The Department of Integrative Biology emphasizes interdisciplinary approaches to understand biological diversity across fields such as genetics, genomics, mathematics, neuroscience, conservation biology, computer science, and infectious diseases.

Affiliated Graduate Programs

Ecology, Evolution, and Behavior
Plant Biology


34 faculty
3 members of the National Academy of Sciences
7 fellows of the American Academy of Arts and Sciences
4 National Science Foundation Early CAREER Awards
2 MacArthur Fellows
1 Kavli Frontiers of Science fellow
1 International Prize for Biology
1 Howard Hughes Medical Institute Award – Early Career Scientist
1 2007 Nobel Peace Prize jointly awarded with Al Gore and others


Animal Behavior
Climate Change
Computational Biology
Conservation Biology
Genome Evolution
Infectious Disease
Sexual Selection

Affiliated Centers & Institutes

Brackenridge Field Laboratory
Center for Brain, Behavior, and Evolution
Center for Computational Biology and Bioinformatics
Institute for Cellular and Molecular Biology
Plant Resources Center
Stengl Lost Pines Biological Station