Introduces, in brief text and illustrations, the characteristics of unusual and, often predatory, fish and other creatures that live in or near the ocean.

The sea can look peaceful. So quiet. So calm. A place of wonder. But deep below the waves, danger lurks, and there are monsters aplenty! Some are big. Many are small. Some kill with poison. Many slash other animals with razor-sharp teeth. Meet some of the deadliest creatures in the ocean, from great white sharks, barracudas, and piranhas to yellow sea anemones and flower urchins.

Dare to dive into the deadliest seas of all time. The makers of the dazzling Walking with Dinosaurs invite you to swim with monstrously terrifying, and enormously fascinating, creatures from 100 million years ago. Time-travel through marine history with intrepid explorer Nigel Marven as he dives in the late Cretaceous Sea, the most frightening waters in history. Fight a deadly battle with sea scorpions and a giant tentacled orthocone.