Behold the dazzling colors of the black-and-gold sapsucking slug (Cyerce nigricans). This sea slug secretes an unappetizing mucus to dissuade predators. When threatened, it can drop its colorful cerata, or leaf-like outgrowths, to create a distraction. This species is found in the western Indian and Pacific Oceans, where it dwells on coral or rocky reefs and snacks on algae.
Photo: profmollusc, CC BY-NC-ND 4.0, iNaturalist
via amnhnyc
