CK-12 Foundation
Ck 12: Biology: Sponges
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of sponges.
Natural History Museum
Natural History Museum: Other Invertebrates
This online exhibit from the Natural History Museum studies a range of topics related to invertebrates, or animals without a backbone. Crabs, snails, barnacles, sponges, and more are discussed at this exhibit.
CK-12 Foundation
Ck 12: Life Science: Sponges
[Free Registration/Login may be required to access all resource tools.] Sponges are classified in the phylum Porifera, from the Latin words meaning "having pores." Sponges are sessile, meaning they cannot move, so they filter water...
PBS
Pbs: The Shape of Life
Companion site for the 8-part PBS series, "The Shape of Life." Each section focuses on a different phylum, from porifera through chordata. This site is highly informative, with beautiful photography.
Other
Ocean Oasis: Field Guide
Ocean Oasis is a giant-screen film that depicts Mexico's Sea of Cortes and the Baja California desert. This companion site features much of the information the film has, such as beautiful images of animals, water, and land that have...
Missouri Botanical Garden
Missouri Botanical Garden: Temperate Oceans
This site from the Missouri Botanical Garden is a comprehensive site covering various topics related to temperate oceans. Be sure to check out the ocean animals link on the left side to learn more about the invertebrates that live in the...