Seen on Shark Week, Dickie Chivell is a South African nature conservationist specializing in marine wildlife and sharks. He-s working in Saudi Arabia now to preserve, restore, and conserve the beautiful Red Sea and coastline. Dickie reassures Mo that sharks attacks are unlikely accidents of mistaken identity and advises him what to do when faced by a shark. In fact, the biggest thing to fear in the oceans is humans and our environmental impact.