Porifera are simple colonial animals that grow attached and submerged. Sponges are all members of one family of over 150 species. They can be found in the clear shallow waters of lakes and ponds. They usually appear dull creamy or brownish, but can have a greenish tint do to any algae present.
Freshwater sponges can range in size from an inch or less to massive encrustations of several square yards. Sponges feed on floating microscopic animals and plants that are trapped in their pores as water circulates through.
June 25, 2007 11:09 AM | Category: Animals