Despite a long-held belief by many surfers that seeing dolphins means there are no sharks in the area, Carlos Gauna, a man who spends much of his life filming both great white sharks and dolphins ...

This is very similar to how the modern great white shark does it. The deepest bite marks on the dolphin's ribs indicate the shark aimed for the abdomen of its prey, inflicting a fatal bite quickly.

A shark only just formally discovered might already be extinct - a fate no shark has yet suffered in the human era - while an Amazon river dolphin has ... Dr. Will White, an Ichthyologist at ...