Book excerpt: Dive deep with Gail Gibbons as she explains the mechanics and discoveries of deep-sea exploration. The surface of the moon is more familiar to us than the deep sea of our own planet. Many oceanographers are trying to change that. To explore the deep sea, they climb into submersibles and employ Remotely Operated Vehicles to find out more about the ocean and ocean floor. In Exploring the Deep, Dark Sea, nonfiction rockstar Gail Gibbons invites readers along for a journey to the depths of the ocean. Without leaving home, readers will learn about the types of animals found at different sea levels. With her trademark combination of clearly-labeled diagrams, infographics, and accessible language, Gibbons explains the technology for exploration, and the many fascinating discoveries scientists have made in the darkest reaches of the ocean. A perfect introduction for aspiring oceanographers, marine biologists, and conservationists, this new edition has been vetted by an expert oceanographer.