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K-Gr 2—These introductions present mammals that are generally active at night, with short comments on their habitats, feeding habits, defenses, birth and growth of young, and average lifespan for creatures that successfully "stay safe...
Gr 8 Up—Effectively promoting the view that "the environment and human relations with the environment over time lie "at the center of the American chronicle," this wide-ranging encyclopedia offers a distinctive angle on our country's past, present, peoples, and cultures...
Gr 4—8—From gross-out goodies—mummification, sewers, early water closets—to everyday, familiar items, such as screws and books, these titles show how ideas and inventions changed the way things were done...
Gr 9 Up—A common sentence opens the introductions to the titles in this series, stating that, "The history of civilization is essentially the story of human beings understanding and manipulating matter...