Explore the strange and unusual world of leeches--their natural habitat, physical characteristics, diet, and behavior Features vivid, eye-popping photos of this unique invertebrate.

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.

Describes the different species of leeches, their physical characteristics, behavior, and life cycle.

Introduces leeches, describing their physical characteristics, life cycle, and method of drinking blood from other animals.