Information on the group's fossil record, life history, ecology, systematics and morphology, covering each group of organisms (each taxon).

Highlights of the larger members of the animal kingdom (Animalia).

An online database of animal natural history, distribution, classification, and conservation biology

A virtual zoo with photo galleries, web cams, news, and a zoo and aquarium directory.

A general overview of Kingdom Animalia.

Brief notes on the biology of about 50 animal species as well as their role in mythology, shamanism, and dream symbolism.

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.

A concise, illustrated overview of Kingdom Animalia and the organization of animal bodies.

An outline of animal taxonomy, with links to descriptions of phyla and major classes and orders.

Searchable database that aims to provide accurate taxonomic and associated information about India's 81,000 known animal species.

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.

Includes a collection of Australian wildlife photographs, many taken in the Brisbane area. Audio available on many frog, mammal and bird pages.

A complete checklist of the whole Italian fauna, with over 57,400 species.

Original photographs for identification of the common species of marine creatures found throughout the Pacific Northwest.

Includes information and images of Paraguayan wildlife, a free on-line Paraguayan zoology journal, and information about birdwatching and wildlife tours.

Descriptions of these phyla with photographs of certain example species

Provides photographs and information covering a wide range of Australian wildlife including mammals, birds, reptiles, frogs, insects and spiders.

Collection of animal recordings and associated video.

Article by Wim van Egmond introducing oligochaetes, flatworms and nematodes with several photographs.

Provides amateur naturalists with the opportunity to share their photographs and stories about the animals that co-exist with man in town, city or backyard.

Biology of the marine flora and fauna with illustrated descriptions of the main marine species of Western Europe.

Images of invertebrates from the tropical rain forest, deserts and coral reefs.

Blog on strange, unusual or weird animals from around the world.