A significant number of sluglike mollusks exist in the universe's seas. They are relatives of the slugs that live on terrain, but unlike them, these marine animals frequently go in brilliant colors and bizarre shapes.
The most drastically significant amass of sea slugs are the nudibranchs. “Nudibranch” denotes “naked gills,” on account of the gills develop as fluffy tufts on the back, not stowed away from view as in different mollusks. Nudibranchs exist essentially on the ocean bottom, slithering in on their bulky foot.
