In Their Own Words chronicles the stories of scientists who have made great contributions to their fields, particularly within the biological sciences. These short oral histories provide our readers a way to learn from and share their experiences. Each month, we will publish in the pages of BioScience and in our podcast, BioScience Talks, the results of these conversations. This third oral history is with Diana Wall, university distinguished professor, director of the School of Global Environmental Sustainability, and professor in the Department of Biology, at Colorado State University. She previously served as president of the American Institute of Biological Sciences.