Animal DiversityOnline database of animal natural history, distribution, classification, and conservation. Text, pictures of live animals, photographs/movies of specimens, and/or sound recordings. Students write text of these accounts; we cannot guarantee their accuracy. Descriptions of levels above the species level, especially phyla, classes, and in some cases, orders and families. Hyperlinked pages and images illustrate traits and general biology of these groups. Professional biologists prepare this part.