This book describes the physical characteristics, habitat, behavior, and life cycle of frogs.

Provides detailed descriptions of the physical characteristics and behavior of sharks.

Describes the physical characteristics, habitat, behavior, ancestors, and engineering abilities of these intelligent water-dwelling mammals.

Provides detailed descriptions of the physical characteristics and behavior of ants.

Describes the physical characteristics, behavior, and natural environment of various members of the ancient crocodile family.

Explains how early inventions, including those of the sundial and compass, as well as more recent discoveries, have helped scientists explore outer space; includes science experiments relating to these instruments.

Describes the physical characteristics, habitat, behavior, and different kinds of these armored invertebrates.

Provides detailed descriptions of the physical characteristics and behavior of dolphins.

Provides detailed descriptions of the physical characteristics and behavior of whales.