Sponges are multicellular organisms belonging to the phylum Porifera. They are one of the simplest and oldest forms of animals on Earth. Sponges are
Callyspongia aculeata - Wikipedia
Unique dietary strategy of invasive marine sponge
Marine conservation - Wikipedia
Increase buffers around Howe Sound's glass reefs, says society
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Sponge-Associated Microorganisms: Evolution, Ecology, and
Mining deep-sea sponges for novel antibiotics
Wounding response in Porifera (sponges) activates ancestral
Sponges ~ MarineBio Conservation Society