Art in Endoscopy: Natural analogies.

We therefore contacted an expert in the biological field, Dr. Conxita Avila from the Department of Evolutionary Biology, Ecology and Environmental Sciences, and Biodiversity Research Institute (IrBIO), University of Barcelona. The image was so extraordinary that we wondered whether any similar image might exist in nature. Our image of the papilla resembles this one of the Caribbean sponge, Mycale laxissima, https://spongeguide.uncw.edu/imageinfo.php?img=319 (photographer Sven Zea; The Sponge Guide, Universidad Nacional de Colombia). [Extracted from the article]