Describes tigers' physical characteristics, habitats, geographical range, hunting behavior, and life cycle, as well as tiger research and conservation.
Provides information about the bald eagle, explaining how and why it came to be a symbol of the United States, and discussing its near extinction in the 1960s and 70s due to the use of the insect control chemical DDT.
Discusses the history and purpose of national parks and describes some prominent examples including Denali National Park in Alaska and Saguaro National Park in Arizona.