Dr. Carrie Doyle and her biology student Sylvia Ramsey, both of Bellarmine University, conduct research for Ramsey’s thesis at Indiana’s Exotic Feline Rescue Center, home to nearly 150 large cats, many recovering from abuse and neglect. Doyle and Ramsey spent 10 days researching the effects of positive enrichment on cortisol levels and gut microbiome in a cohort of ten female tigers.