ecology

Describes deserts, their locations, and the inhabitants of this ecological biome.

Describes the ecology and biology of the three different types of North American prairie--tallgrass, mixed-grass, and shortgrass.

Explains how the acacia evolved its own protection against browsing animals and helped create a balanced natural environment.

Introduces children to marshes, bogs, swamps, and estuaries.

Discusses the habits and life cycle of prairie dogs and examines their place in the ecology of their grassland environment.

Examines the forest community as an ecological niche and describes the trees, plants, and animals supported there.

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

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

Traces the life cycle of an oak tree and describes the animals that depend on it for shelter and food.