back button photo of sponge

72 dpi image

Belonging to the phylum Porifera, or "pore bearer", sponges are considered to be among the simplest living organisms. All sponges are filter feeders, collecting small particles of food from the sea water flowing through their bodies.
(This copyrighted image is used by permission of the photographer and not intended for any type of commercial/non-profit use. Please contact Kip Evans at for more information.)

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