The Sap-sucking Sea Slug: Butterfly Sacoglossan
Many divers, and especially macro underwater photographers, adore the lovely, colorful, and photogenic sea slugs found in the deep. We often call them nudibranchs, the “butterflies of the sea.” But not all sea slugs are nudibranchs. Have you ever heard of the sacoglossan? Underwater photographer Wesley Oosthuizen takes a closer look at a special sacoglossan species—the butterfly sap-sucking slug.