Steven jumps from Mani's boat to the police boat. He throws a policeman off and jumps off himself. But a policeman who was driving the boat disappears when it crashes into the rocks.
When Corinne looks down the microscope, she says that there is a hormone in the unusual-looking cell. You would not be able to see a hormone through a microscope and the cell is quite clearly a normal-looking eosinophil.
They mention that sharks are immune to diseases and cancer, but sharks do get cancer. A tumor was found on the lower jaw of a great white in 2013. Scientists have known for over 150 years that sharks can get cancer.