Sea Sponges refer to a diverse group of aquatic animals belonging to the phylum Porifera, characterized by their porous structures and unique feeding habits. They are primitive multicellular organisms found predominantly in marine environments, although some species also inhabit freshwater areas. Despite being classified under the animal kingdom, they exhibit distinct characteristics that differentiate them from typical animals and are sometimes confused with plant or fungi species. They play an important role in marine ecosystems, contributing to nutrient cycling and habitat formation.