leeches

Explores the physiology, habitat, and past and present medical uses of a variety of leeches.

This book describes the physical characteristics, habits, and life cycle of leeches.

An introduction to leeches that describes their anatomy, habitat, life cycle, how they feed, and their medicinal uses. Includes a glossary, an index and Web site.

Defines annelids, such as blood-sucking leeches and earthworms, and describes their physical characteristics, life cycles, habitats, senses, food, and means of self-defense.

Describes what leeches look like, where they live, what they eat, how they travel, who their relatives are, and how some of them draw blood.