From the vibrant reefs along ocean shores to the cold, dark depths of the midnight zone, Earths oceans are home to a diverse wealth of plant and animal life. This book explores the oceans myriad habitats and the environmental and human factors that impact them.

Includes index.

Five oceans -- Tides, currents, and waves -- Warm and cold -- Long migrations -- Sunlight to darkness -- Ocean shores -- Shallow waters -- The open ocean -- Exploration -- Ocean bounty -- Oceans and climate -- Threatened.