Killer whales are actually a kind of dolphin. They got their name when sailors witnessed some killing a whale long ago. Despite their deadly name, people have little to fear from these sea mammals. However, fish, seals, walruses, and even other killer whales have to watch out. These specially camouflaged creatures are huge and often hungry. Readers of this fact-packed book will learn how killer whales hunt in groups called pods, use echolocation to find their way, and why they're often called the "wolves of the ocean."
