The Department of Integrative Biology is an academic unit whose faculty have teaching and research interests in Behavior, Ecology, Evolution, Population Biology, and Systematics. The department includes dozens of faculty who work on a wide diversity of organisms including animals, bacteria, and plants.

The Department of Integrative Biology is housed primarily in two buildings: Patterson Labs and Biological Laboratories. Faculty laboratories in these buildings include state-of-the-art facilities for performing research in behavior, ecology, evolutionary biology, and systematics. A number of Organized Research Units are associated with the department, including the Biodiversity Center, the Center for Computational Biology and Bioinformatics (CCBB), and the Center for Brain, Behavior and EvolutionCenter for Brain, Behavior and Evolution. Within its Biodiversity Center, the Department also houses a large and diverse collection of museum specimens for use by faculty and students and field laboratories: the Brackenridge Field Laboratory and Stengl Lost Pines Biological Station, where researchers perform field studies near the UT campus.

Areas of research in the department include animal behavior, behavioral ecology, biomechanics, community ecology, conservation biology, developmental genetics, empirical and theoretical population genetics, functional morphology, molecular evolution, neuroendocrinology, plant-animal interactions, phylogenetics, population ecology, quantitative genetics, systematics, and tropical ecology. Detailed research interests of the individual faculty members can be found on the faculty web pages.