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Image of a pink sponge showing its delicate structure
Courtesy NOAA Photo Archive
  Image 1-21
Pink Sponge

This image shows the delicate structure of this beautiful pink sponge. The small holes in the wall of the sponge draw in water containing microscopic animals. The sponge feeds on this plankton and the excess water is expelled through the large opening in the center of the sponge.

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