Presents an introduction to the different species of sharks, pointing out such characteristics as the small size of the dwarf lantern shark and the physical characteristics and behavior that makes sharks killing machines.

"Are sharks really dangerous? How many kinds are there? And how do they help the environment? From huge whale sharks to tiny dwarf sharks, this book has everything you need to know about one of our most popular--and mysterious--sea creatures. Millions of years before the first dinosaurs walked the earth, the first sharks swam in the sea. Though they're often feared and misunderstood, most sharks aren't dangerous to humans. With her signature combination...

Contains facts about hammerhead sharks and bull sharks, comparing such aspects as their sizes, brain structure, and abilities.

When you get to know the truth about sharks, you'll begin to see them as the fascinating creatures they are, instead of the monsters of myth.

"A hammerhead shark puts on a burst of speed, crushes its target beneath its wide, flat head, and gulps down a whole chunk of prey-without even chewing first. The hammerhead shark may have a unique head shape, but this tool is full of surprises that make it a fierce hunter. Dive under the waves to see the hammerheads incredible senses at work, follow along with its migration, learn how it has young, and more. It's time to get shark shocked!"--

Includes pictures and information about various breeds of sharks and how they reproduce, eat, and breathe. Recommended websites included to give more information about sharks.

"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"--

"Engaging images accompany information about the hammerhead shark. The combination of high-interest subject matter and narrative text is intended for students in grades 3 through 7".

"A countdown of five of the most dangerous shark encounters provides thrills as readers learn about the biological, social, and hunting characteristics of these ocean predators"--

"When Jack and Annie came back from their adventure in Magic Tree House #53: 'Shadow of the Shark,' they had lots of questions. How many teeth do sharks have? What is their favorite food? What are some other top predators? How do they keep life in balance? Find out the answers to these questions and more as Jack and Annie track the facts about sharks and other predators"--