With their blue blood, big brains and eight arms, octopuses are dramatically different from any other being.

Octopuses are masters of camouflage and known for their incredible escapes from tight spots. New research shows that they are highly intelligent creatures, and while they prefer to be alone, they will interact with humans and display unique personality traits.

In Octopus Ocean, discover the mysteries and histories of octopuses big and small—their biology, habitat and habits—and explore the top threats to their future, including warming oceans, over-fishing and pollution.

Part of the nonfiction Orca Wild series for middle-grade readers this book introduces kids to octopuses all over the world. It discusses octopus habitat, biology and threats to survival, and how scientists, conservationists and young people are working to protect octopuses everywhere.

"Mark Leiren-Young's Octopus Ocean gives young readers a wonderful sense of many aspects of the world of octopuses in a very clear, concise and interesting way. It makes the reader think, and it educates without preaching. This book is a door to the magnificent world of the octopus—a door that, if opened and explored, will bring much joy and connection." - Craig Foster, star and producer of My Octopus Teacher