Other
Marine Invertebrates of Hawaii Phylum Annelida
Colorful pictures and short descriptions of several marine worms are available here.
Middle School Science
Lesson Plan: Earthworm Dissection
In this lesson plan site, you will "Learn the external and internal anatomy of the earthworm, understand the structure and function of external and internal organs, know the digestive, circulatory, reproductive, and nervous system, and...
University of Michigan
Animal Diversity Web: Subclass Hirudinea [Leeches]
This resource gives a brief description of the subclass Hirudinea and the role they have played in medicine.
Other
Tampa Bay Business Journal: Leeches and Maggots and Medicine, Oh My!
This brief article explains how leeches are used in microsurgery to assist in the reattachment of body parts.
Biology 4 kids
Biology4 Kids: Annelids Worms With Segments
If you've dodged earthworms along the sidewalk after a rainfall then you have observed annelids. This text highlights these and other segmented worms.
National Institutes of Health
Niehs: Kids' Pages: Vermicomposting
Informational facts on worms with directions on how to vermicompost, where worms turn garbage into plant food.
Encyclopedia of Life
Encyclopedia of Life: Segmented Worms
The Encyclopedia of Life presents this in-depth overview of Segmented Worms (Annelida), including their habitats, size, conservation status, and much more. Images of this phylum and maps of its global distribution can also be found here.
Mocomi & Anibrain Digital Technologies
Mocomi: Earthworm Facts and Information
Learn where earthworms live, how they are useful to the environment, and other interesting fun facts.
Saint Louis Zoo
Saint Louis Zoo: Earthworms
Discover basic facts about the earthworm, also known as the nightcrawler.
Saint Louis Zoo
Saint Louis Zoo: Medicinal Leech
Discover fun facts and learn about the medicinal uses of leeches.
American Museum of Natural History
American Museum of Natural History: Annelida
Basic facts about segmented worms: their size, number of species, where they typically live, ecological roles, and human uses.