| AnimalFact.com: Short articles highlighting unusual facts about animals. |
| Animals Online: Fact sheets and photos of 444 species. In English and Dutch. |
| Animals! The Animal Information Center: A general overview of Kingdom Animalia. |
| Australian Wildlife: Contains a collection of Australian wildlife photographs, many taken in the Brisbane area. Audio available on many frog, mammal and bird pages. |
| Biological Diversity: Animals: A concise, illustrated overview of Kingdom Animalia and the organization of animal bodies. |
| Digital Morphology: A dynamic archive of information on digital morphology and high-resolution X-ray computed tomography of biological specimens. Includes slice-by-slice animations, animated volumetric and 3D surface renderings, introduction, references, links, and archival museum data for each specimen. |
| ExZOOberance: A virtual zoo with photo galleries, web cams, news, and a zoo and aquarium directory. |
| FaunaItalia: A complete checklist of the whole Italian fauna, with over 57,400 species. |
| Indian Fauna: Searchable database that aims to provide accurate taxonomic and associated information about India's 81,000 known animal species. |
| Introduction to the Metazoa: Information on the group's fossil record, life history, ecology, systematics and morphology, covering each group of organisms (each taxon). |
| Jellies Zone: Guide to gelatinous zooplankton of the U.S. Pacific Coast, with photos and information on jellyfish (true jellies), comb jellies, gelatinous molluscs, and pelagic tunicates. |
| Natural Perspective: Highlights of the larger members of the animal kingdom (Animalia). |
| The Animal Diversity Web: An online database of animal natural history, distribution, classification, and conservation biology |
| The Animal Files: Brief notes on the biology of about 50 animal species as well as their role in mythology, shamanism, and dream symbolism. |
| The Phyla of Kingdom Animalia: Comprehensive outline of animal taxonomy, with links to descriptions of phyla and major classes and orders. |