Sharks. Mysterious, dangerous, and often feared, these predators of the sea are fascinating creatures that capture the interest of all ages. Each shark species is unique, with adaptations that help it survive in its own part of the ocean. Become an armchair marine biologist! This photo-illustrated book describes the different species of hammerhead sharks, including the bonnethead, the scalloped hammerhead, and the winghead sharks. Explains their life cycle, how they hunt prey, and the work being done to protect this unique looking shark.