Video: Interview with Italy Leg Expedition Leader Katy Croff Bell Expedition Leader of Leg 4, Katy Croff Bell, describes what the Nautilus found during the fourth leg of the expedition, off the coast of Sicily, Italy. Expedition Submarine Volcanoes of the Aeolian Arc and Tyrrhenian Sea Related Content View video Video: How Seafloor Mapping Data Guides ROV Exploration View video Video: Advancing Autonomous Mesopelagic Exploration with Mesobot! View video Video: Beyond the Wow: Complex Robots Need Simple Checklists