Large claws pinch ... Skinny legs scurry ... Meet the crab! Brimming with vivid photos and scientific facts, this middle-grade nonfiction book treats researchers and marine animal lovers to a comprehensive profile of these intriguing invertebrates of the ocean. It covers zoology topics such as anatomy, diet, habitat, and life cycle, as well as species conservation efforts and the animals' relationship with humans throughout history. Sidebars, a range map, and a glossary support the main text, while a traditional Japanese story about the crab adds a cross-curricular cultural layer to the title.