In this intriguing image, a Flabellina nudibranch strikes a pose reminiscent of a horse’s pesade. Its slender, translucent form showcases a stunning array of colors, from iridescent orange to vibrant purple. These marine creatures, part of the Flabellinidae family, are known for their distinct cerata, which function as both gills and a defense mechanism. Flabellina nudibranchs are carnivorous, primarily feeding on hydroids and small crustaceans. Their remarkable mimicry and graceful movements make them a captivating sight for divers and a subject of interest for marine enthusiasts and scientists alike.