Sharks seem to be equally feared and beloved by many people, as media such as Jaws and Discovery's Shark Week attest. However, only a few of the world's 500 species tend to receive most of the public's attention. Young readers learn about lesser-known sharks, including the tiny cookiecutter shark, the rare frilled shark, and the bizarre goblin shark. The intriguing main text, supplemented with vibrant full-color photographs and engaging sidebars, uncovers how sharks have adapted to dominate the ocean for millions of years, their critical role in marine ecosystems, and the surprising ways they interact with their environment.