Sylvia A Johnson

Describes different kinds of tree frogs and the way in which they live.

Presents information about the physical characteristics, behavior, and history of ferrets and discusses keeping and caring for these animals as pets.

Describes the characteristics and development of mosses.

Describes how chirping insects such as crickets, katydids, and grasshoppers produce their songs and use them to send messages to other members of their species.

Describes the development of the potato, including information on planting seed potatoes, sprouting, the growth of the plant and its underground tubers, and the role played by tubers in the life of the potato plant.

Text and photographs examine the different kinds of coral reefs and their composition and describe the variety of fish, mollusks, crustaceans, and other animals that live in the reef environment.

Describes the physical characteristics, habits, and natural environment of the elephant seals, so named because of their size and the proboscis that the males have on their noses.