As scary as it may seem, supersized, insect-like creatures used to roam the Earth long before humans. In this peek into prehistory, award-winning science writer Helaine Becker introduces seven of these megabugs, the ancestors of modern-day insects, spiders, crabs and other arthropods, which lived from 480 million to 47 million years ago. The book explores when, where and how they each lived, why they grew so big and what caused their extinction. Highly realistic illustrations show each megabug in its habitat. The end of the book includes a few supersized critters that are still around today!
