Endangered Animals of the Sea. There are millions of animals that call the ocean home. Some of these animals are in danger. Learn about marine animals that are at risk of becoming endangered and what people and activists like Jacques Cousteau have done to help. Readers will learn about the causes of endangered animals, including pollution and overfishing and learn steps they can do to help the conservation and preservation of these beautiful animals and sea life. Through vibrant images, informational text, stunning facts, a glossary of terms, and a list of additional resources, readers are sure to be engaged and inspired