As part of the 2023 Summer Lecture Series, Vanessa Ezenwa, a professor of ecology and evolutionary biology at Yale University and an American Association for the Advancement of Science (AAAS) fellow, will give the Pettingill Lecture in Natural History at the U-M Biological Station, an 11,000-acre research and teaching campus just south of the Mackinac Bridge on Douglas Lake. Ezenwa studies the ecology and evolution of infectious diseases in wild animal populations, such as deer, gazelle and buffalo. Her lab work explores interesting questions such as whether group living and migration increase or decrease the negative effects of parasites in the wild.