This week on Gills Talk, Kristen interviews Grace Casselberry. Grace is a PhD candidate at UMass Amherst. Her work integrates acoustic and satellite telemetry to improve our understanding of shark spatial ecology and predator-prey interactions. In Grace's interview, we learn about her current projects in St. Croix and the Florida Keys. We also talk about her recent experience watching white sharks and blue sharks feeding on a whale carcass.