Devil Sharks Shark Week : Season 30 Episode 11

From active to extinct, and at every stage in between, volcanoes hold a strong attraction for sharks of all kinds. Across the world, sharks congregate and concentrate around volcanoes and volcanic islands. What is it about volcanoes that make them shark hotspots? Dr. Mike Heithaus dives in several volcanoes to find out. Produced by Pangolin Pictures.