While building a fort near their homes by Oregon's Umpqua River, two nine-year-olds make a discovery that involves their neighbors in trying to stop a bridge from being built on an important archeological site.
An introduction to geology that uses full-color photographs and easy-to-read text to describe what fossils are, how they form, and what they reveal about the past.
an original and compelling insight into life in the dinosaur kingdom
Norman, David
1985
A detailed examination of the world of dinosaurs, their appearance, behavior, and families, describing current theories about their extinction and explaining how paleontologists study their fossilized remains.
Follows the story of the earth from its fiery beginnings to a planet teeming with life. Discusses geography, fossils, the evolution of life, and dinosaurs.
Provides information about mammoths and mastodons based on research from the discovery of a complete frozen baby mammoth, answers questions about their lives and why they became extinct, and includes photographs.
