Rotter, Charles

Describes the physical characteristics and habits of walruses and some of the dangers they face.

Examines the physical characteristics, habitats, and behavior of seals and sea lions and discusses the differences between them.

Introduces the physical characteristics, habits, and life cycle of the monarch butterfly.

Describes the physical characteristics and habits of walruses and some of the dangers they face.

Describes the different plants and animals which can be found in the prairie.

Presents information on the different types of mountains, how they are formed, and the various animals that make mountains their home.