Gorillas can be pretty big, but just wait until you see Gigantopithecus. This huge ape lived 9 million years ago and was three times as heavy and two times as tall as a modern gorilla. There were lots of other prehistoric giants, too. Giant camels lived in the United States and even in the Arctic. Another beast was Stupendemys—a turtle so large that a car could fit on its shell! What would happen if these giant beasts came to life? Imagine prehistoric giants walking the streets of New York and climbing the Great Wall of China—and learn amazing facts about these fascinating creatures!