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 di

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.

Describes a river in Alaska and the life that it supports, emphasizing how the living things around it are connected and dependent upon it for th