Magnificent purple and yellow Phyllodesmium magnum nudibranch stretching on the ocean floor to show its amazing form and colors

animals colourful cute animal amazing animals animal behavior salt water fish underwater life marine life ocean life sea life ocean sea scuba diving scuba diving wild wildlife ocean conservation nature underwater underwater world animalia blue ocean nudibranch nudibranchs softbodied softbodied gastropod softbodied marine gastropod softbodied marine molluscs molluscs snail snails sea snails marine snails slug slugs sea slugs shell less nudus opistobranchs mollusca sacoglossa nudibranchia nudipleura benthic bottom dweller sacoglossan phyllodesmium magnum