Mammoth Bones and Broken Stones

Who were the first humans to reach North America? When and how did they arrive? Noted author David L. Harrison explores the various theories of North America's first people: Some evidence suggests that they walked across the land bridge that once connected Siberia and Alaska. Elsewhere, a growing number of archaeologists believe that at least some, if not most, of our forefathers arrived by boat along North America's northwest coast, possibly from Southeast Asia or Japan. Other archeologists speculate that humans reached the continent by boat, crossing the frigid North Atlantic waters from Europe. With archeological field photographs and realistic illustrations by Richard Hilliard, the author demonstrates how scientists are like detectives, investigating mysteries that took place more than one hundred centuries ago. Includes maps, glossary, sources, index."The author demonstrates the precise work of those attempting to understand the hidden aspects of human history and how many of these old questions are seen in the light of new technologies and discoveries." —Kirkus Reviews

"This intriguing addition is a solid find." —School Library Journal

"A perfect addition to a collection needing middle school research sources. The level of writing and content meets the needs of the researcher, and the format and extensive illustrations meet the interest needs of a young adolescent. Bibliography. Glossary. Index." —Library Media ConnectionDavid L. Harrison is the author of more than fifty books and holds degrees in biology and parasitology. He lives in Springfield, Missouri.

Richard Hilliard is the author and illustrator of Neil, Buzz, and Mike Go to the Moon, an IRA Notable Children's Book and a James Madison Award nominee.