Mega MeltdownBy: Jack Tite Illustrator: Jack Tite Nearly three million years ago the Ice Age began. Oceans froze, ice sheets covered land and animals, along with humans, found ways to thrive. These prehistoric creatures were weird, wonderful and enormous! Explore the Earth continent by continent and come face to face with Ice Age megafauna, such as North America's short faced bear which was 3. 7 metres tall, and mastodons which weighed twice as much as a T. rex!