This beautiful picture book invites young readers to dive into the ocean and experience a world of aquatic information. Jellyfish Luna enjoys the time she shares with Turtle, Stingray, Octopus, Hermit (crab), and many vibrant fish. She notices, though, the patterns and rhythms of the water changing; soon, she spots changes among her friends. Hermit fashions a plastic cup, Turtle begins to eat plastic, and Octopus notices the temperature of the water becoming warmer. Luna's friends in the ocean are replaced by garbage, leaving Luna to wonder how she will carry on alone. This book is an excellent starter for discussion of cause and effect, as Seal reminds us that human behavior is directly linked to animal behavior. Educators can use this book as a springboard for further research into oceanic pollution, and students will learn the real cause behind a jellyfish bloom. Readers will fall in love with the whimsical sea creatures and their pastel colors and expressions as the story unfolds. A must-read for young environmental activists.--Children's Literature "Children's Literature" (1/22/2024 12:00:00 AM)