Polar bears are the top predators of the Arctic. Walruses are mighty beasts with many defenses. In a fight which one would come out on top? Readers of this high-interest title will learn about the weapons and defenses of polar bears and walruses. Profiles cover each animal's sizes and habitats while other features highlight claw length and swim speed. A final narrative puts their weapons to the test. Who will be marked the mightiest in the Arctic?