How do fish survive in the deepest parts of the ocean? What is a tsunami? Why are our oceans and seas getting warmer? 'Mapping Earthforms' looks at the physical features that shape out landscape. The series explains how these features have developed, how they support and challenge living things today, and how they might change in the future. The series shows how the lives of people, plants, and animals are shaped by their environment, and how this environment is changing.