+**Porifera** are a phylum of simple aquatic [Animals](/wiki/animals), commonly known as [Sponges](/wiki/sponges). Lacking true tissues and organs, these sessile multicellular organisms filter water through their bodies for sustenance.
+## See also
+- [Marine Life](/wiki/marine_life)
+- [Invertebrates](/wiki/invertebrates)
+- [Filter Feeding](/wiki/filter_feeding)