Susan Heinrichs Gray

Describes some of the main deserts around the world, how deserts are formed, and some of the plants and animals found in these dry areas.

Describes the characteristics of mountainous areas and the plants and animals that inhabit them.

Looks at the qualities of zebra mussels and examines how they became an invasive species in Western Europe and the United States, how they cause problems in their new environments, and the ways that people have attempted to deal with them.

Briefly describes the climate, land formations, plant life, and animals of the frozen arctic land called tundra.

Presents the history of and developments in the field of emergency care and profiles individuals who have made lasting contributions to the field.

Examines the characteristics, behavior, and habitat of nudibranch sea slugs.

Provides simple, step-by-step instructions for an assortment of science experiments that each deal in some way with insects. Features full-color photographs and illustrations throughout.

Describes the life of the gray whale, focusing on its physical characteristics, behaviors, migration, and reproduction. Explains why gray whales were placed on the endangered species list because of human hunters. This text provides information on what has been done to curb hunting and help the mammal get off the endangered list.

Describes the life of a whooping crane, focusing on its its first flight, physical characteristics, behaviors, migration, and reproduction. Today whooping cranes face extinction because of the loss of wetland habitats and the text provides information on what is being done to prevent it.

Describes the life cycle of a small beetle known as an emerald ash borer, and includes information on its physical characteristics, behaviors, diet, and its life in a larva, pupa, and final move into adulthood where it spends its time in an ash tree. In order to curb the massive growth of ash borers, the government burns down ash trees or places wasp eggs in places where they can ingest emerald ash borer larvae.