Animalia Biology

• Acanthocephala
• Acoelomates
• Annelida
• Arthropoda
• Brachiopoda
• Bryozoa
• Chordata
• Echinodermata
• Echiura

• Gastrotricha
• Gnasthostomulida
• Hemichordata
• Kinorhyncha
• Lophophorates
• Mollusca
• Nematoda
• Nematomorpha
• Nemertea

• Onychophora
• Phoronida
• Platyhelminthes
• Porifera
• Radiata
• Rhombozoa
• Rotifera
• Sipuncula
• Tardigrades

• Directories

• Flatworms@
• Sponges@
• Velvet Worms@

• Recreation: Pets 
• Science: Biology: Zoology 

• Biological Diversity Animals I  - Presents a treatise on the animal kingdom. With illustrations and links to other works.
• Cool Cosmos: Infrared Zoo  - Offers infrared images of birds, reptiles and amphibians, mammals, and insects and arachnids to demonstrate the differences between warm-blooded and cold-blooded animals.
• Deuterostomes and the Origins of Vertebrates  - Features images, descriptions, and review questions on external and internal anatomy for several phylum.
• Deuterostomes: Echinoderms, Chordates  - Describes the members of the two phylums, including physical similarities and differences.
• Invertebrate Zoology OnLine  - Features original anatomical descriptions for more than 100 invertebrate species.
• Links to Websites: Mollusca and Annelida  - Links to online resources for these phyla.
• National Geographic Animals and Nature  - Provides news and information on the world's fauna. Includes, wallpapers, TV programs and publications.
• Origin of the Metazoan Phyla: Molecular Clocks Confirm Paleontological Estimates  - Presents an article on the probable beginnings of the animal kingdom.
• US EPA National Coastal Assessment Data  - Provides list of phylum, class, genus, and family.
• Watershed Connections: Birds and Mammals  - River Basin Center describes taxonomy and characteristics, background. Includes activities and internet resources.
• Zoology 250 (2009): Other Deuterostomes  - Course outline includes phyla, shared traits, and cladograms for Lophophorates and Hemichordata.
• Zoology 250 (2009): Two Minor Protostome Phyla  - Furnishes lecture outline for course on Echiura and Pogonophora. Includes cladograms.