How is "biggest" defined in the animal kingdom? If it means tallest, the giraffe is a contender. If it means heaviest, male polar bears can weigh in at almost up to 1,000 pounds! In this charming spin on animal books, two supersized animals meet in an imaginary face off to see who's bigger. Each animal is profiled with fun facts, showcased in a creative layout with full-color images. Including age-appropriate content and language, the main text draws in readers of all abilities and supplements classroom learning.