Mega Meltdown: The Weird and Wonderful Animals of the Ice Age Young readers can come face to face with the mega-sized animals that roamed the earth during the Ice Age with this richly illustrated book. Explore the wonderful, weird, and enormous megafauna who inhabited the earth like the giant Mastodons or the 12-foot-tall Short-Faced Bear. Lively text and fabulous images bring these animals to life and help readers imagine what they were really like.