A companion volume to the 3-D "Sea Monsters" film reveals the terrifying predators that lurked in the underwater Cretaceous world, in a volume that also profile
The Smithsonian invites little ones to learn about traveling to the moon You'll discover fascinating facts about astronauts and outer space. This book features
In the days when dinosaurs dominated the earth, their marine counterparts - every bit as big and ferocious - reigned supreme in prehistoric seas. In this book,
Prehistoric sea reptiles swam the world’s oceans during the time of the dinosaurs. This text presents 10 of the most fascinating sea reptiles, including the I