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![Halifax River inlet tide pool in Florida](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419560287-HP5NQGN1AC53Z5NY1NSG/IMG_7947.jpeg)
![Submerged Sun Sponge (Hymeniacidon heliophila)](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419562287-GDEVD2QV19GIXSE2UO7K/IMG_7942.jpeg)
![Sun Sponge being exposed to full sunlight and air during low tide](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419554850-TQX1FU9YO5CVV0OVZQI5/IMG_7940.jpeg)
![Sun Sponge with bright orange pigments](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419558380-GSE896W984DEUOD9WQYS/IMG_7964.jpeg)
![Sun Sponge osculum where water is filtered out at 20x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419556050-B31TFW6I88NNTCV23IE4/IMG_8007.jpeg)
![Osculum at 40x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419563284-GGTQE4WS39PBU5N23CZX/IMG_8726.jpeg)
![Osculum with visible spicules at 100x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419564532-Q80BPSDGN9BM2WKMH0SB/IMG_8731.jpeg)
![Sun Sponge outer pores where water is sucked in to filter-feed at 100x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648705704662-4ALG0CM1JPLB21QL8OR5/IMG_9152.jpeg)
![Sun Sponge outer cells and spicules at 100x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648705705655-QTFWHDT4O99F6RALU9HD/IMG_9156.jpeg)
![Calcium carbonate spicules that give the sponge its structure and rigidity at 400x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419557046-491G28L6AF7EJ6QVV16N/IMG_8020.jpeg)
![Sun Sponge cells and spicules at 400x](https://images.squarespace-cdn.com/content/v1/57b4355cbe65942bdfc8d605/1648419565455-7PBSV34TYDMJM6HEIOOO/IMG_8732.jpeg)