Jean Zallinger

Discusses the physical characteristics, habits, natural environment, and relationship to human beings of whales and dolphins. Includes a glossary giving the popular and scientific name of each species and details of their size and appearance.

This handy identification guide to the plants that cause billions of dollars annually in crop loss and control measures include information on: -The harm that weeds cause -Benefits from weeds -Major weed habitats Accurate full-color illustrations and descriptive text identify the principal weeds and weed groups that invade lawns, gardens, fields, and roadsides. Range maps show distribution within the United States.