Shaking the Foundation

By Sylvia A. Johnson

Cobras Nature Watch

By

Raptor Rescue!: An Eagle Flies Free

By Sylvia Johnson, Sylvia A. Johnson

A Parent's Guide to Cleft Lip and Palate

By Clark D. Starr, Sylvia A. Johnson, Karlind T. Moller

Focus on Mexico

By Louis B. Casagrande

Examines the diversity of life in modern Mexico, its peoples and complex cultural heritage, and how past and present combine in a blend of cultures.

Coral reefs

By Sylvia A. Johnson

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.

Crabs

By Sylvia A. Johnson

Discusses the physical characteristics, behavior, and life cycle of crabs.

Inside an egg

By Sylvia A. Johnson

Text and photographs trace the development of a chicken egg from the time it is laid until the chick is born.

Chirping insects

By Sylvia A. Johnson

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.

Roses red, violets blue

By Sylvia A. Johnson

Examines the nature and function of flower colors and explains their role in attracting animal pollinators to help the plants reproduce.