From microscopic plankton to colossal squid, life takes many strange forms under the sea. The ocean is home to many thousands of different plants that offer food and shelter to other ocean life. Together with invertebrates, such as coral and sea stars, these species make up most of all life in the ocean! Engaging text and extraordinary photos let readers dive deep into the wild world of the ocean, and included comprehension questions ensure a well-rounded understanding of life beneath the waves.