The first is the Woods Hole Marine Biological Laboratory site . This site has a variety of pages, each highlighting a particular phyla. Information tends to be quite detailed and scientific, and there are some terrific pictures. The University of California Museum of Paleontology also has a good site. Hi I'm doing a report on sponges, the differences between them and factory sponges, but I cant seem to find any information on them.
Sea sponges are animals in the Phylum Porifera.
They are relatively simple animals, but are still multicellular, and do things that you would expect animals to do, such as eat, grow, and reproduce. The material spongin is very soft an pliable. This is why people collected these animals, dried them out, and used their skeletons for bathing. Most commercial sponges today, however, are made from plastics and other artificial materials. In school, I have the assignment of putting together a report on how sponges communicate, and I can't seem to find any answers.