Find out about the circle of life in Earth's amazing ocean habitat. Explore Ecosystems: Ocean dives into the diverse wonder of the Pacific Ocean biome. This habitat is home to sharks, krill, whales, penguins and more. Readers find out how this ecosystem works through the lives of these animals. It explores how ocean life relies not only on other living things, but on non-living things, such as the sea bed, underwater caves and currents.The importance of balance in the natural world is a key theme - showing how animals large and tiny have an impact on their environment. The Explore Ecosystems series is a perfect introduction to habitats for readers aged 7 and up.Titles in the series In a Desert In an Ocean In a Pond In a Rainforest On a Savannah In a Tree.