Debbie S. Miller

The story of the heroic role played by sled dogs, including the Siberian husky Togo, in the delivery of antitoxin serum to those stricken with diphtheria in 1925 Nome. Includes historical notes about the event as well as about the Iditarod Sled Dog Race which commemorates it.

An introduction to trees that compares parts of a tree to parts of the human body, with illustrations and brief descriptions of trees found around the world.

Describes the extreme environmental conditions that tundra wildlife endure in the winter and the adaptations that they make, from the cooling and warming cycles of the ground squirrel to the partial-freeze hibernation of the wood frog.

A great woolly mammoth leads her family across rivers, plains, and glacial ridges on an annual migration to familiar feeding grounds during a journey which happened more than 12,000 years ago.

Describes the formation of a vernal lake in Alaska's Denali National Park and the various creatures that make their homes in and around it.