Most children know what an astronaut is, but an aquanaut? Not so common. Focusing on a one-week expedition in the underwater science station Aquarius, Mallory and marine photographer Skerry literally immerse themselves in this adventure. The science station is an 80-ton cylindrical steel chamber that's like “a mobile home someone has driven into the ocean.” The team's project is to electronically tag fish and observe their daily habits. The narrative chronicles the safety training needed before the expedition, the implantation of tags or pingers inside the fish and the day-to-day experience of living 60 feet below the ocean’s surface. What do aquanauts eat? Can you make telephone calls and send e-mails? And most importantly—is it possible for a toilet to explode from too much pressure? (Answer: yes.) Full-page interludes on topics such as sea-habitat history and the importance of decompression are disruptive at times but ultimately add to the understanding of this undersea adventure. A rather dry design aside, this book intrigues. (introduction, further reading, glossary, index) (Nonfiction. 9-12)
