Describes swamps, marshes, and bogs, places which are almost always wet and soggy and which are habitats for hundreds of kinds of plants and animals.

Explores the mysterious green jungles of the tropics which receive one hundred or more inches of rain per year and which are home to a tremendous variety of plants and animals.

Briefly describes the different kinds of woodlands in North America and some of the plants and animals found there.

Examines the mountainous community as an ecological niche and describes the plant and animal life supported there.

Briefly describes how ponds are formed and examines the plant and animal life these small bodies of still water support.

Looks at the grasslands of the United States, animals that dwell in them, and how grasslands are changing.

Examines the arctic tundra as an ecological niche and describes the plant and animal life supported there.