Animal Diversity Web (ADW) is an online database of animal natural history, distribution, classification, and conservation biology hosted by the University of Michigan Museum of Zoology. It provides descriptions of levels of organization above the species level, especially phyla, classes, and in some cases orders and families. Hundreds of hyperlinked pages and images illustrate the traits and general biology of these groups. This component of ADW is prepared by professional biologists. It also offers thousands of species accounts that may include text, pictures, photographs, and movies of specimens and/or sound recordings. Student authorship of species accounts is an essential feature of ADW. A web-based template ensures a consistent format for species accounts, and instructors and ADW staff review and edit them before they are added to the site.