Readers learn fun facts about life under the sea in this engaging guide to the world's oceans. Questions readers might have about ocean life (How do waves move? Why do some ocean animals change color? Why are the oceans in danger?) are answered in an engaging way that appeals to readers at a variety of levels. Short blocks of text and impressive illustrations guide readers through this exciting exploration of the oceans. Readers are also encouraged to think critically about the future of the oceans and what they can do to keep these watery worlds safe.