Describes the activities of various animals in Arizona's Sonoran Desert.
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This book re-creates the great events and heroic personalities in America's struggle for independence.
Examines the natural history, scenic beauty, and ecological controversies of the oldest national park in the world, Yellowstone, and its neighbor, Grand Teton National Park.
A picture encyclopedia presenting a general introduction to the world's mammals and the vital statistics and behavior for each of the entries from aardvark to zorilla.
The Vikings-Scandinavian raiders, merchants, and settlers of the 9th th 11th centuries-came out of a dark North that left us few historic records. However, archeological discoveries have made it possible to piece together much of the picture.
A family reference work containing alphabetically arranged articles, with charts, maps, and photographs, covering physical and human geography.
Describes the roles of the types of bees, their activities in the hive, and their many uses to man.