atlantic sea nettle jellyfish in wild life. group of swimming luminous invertebrates.

water nettle fish animal ocean dark jellyfish sea tropical blue underwater life spot background nature staurozoa scyphozoa venom motion specie pacific jellies medusozoa atlantic beautiful bioluminescence bright carnivorous aquarium cubozoa evening fluorescent gelatinous hydrozoa concert translucent swim shape oceanography medusa marine jelly isolated glow glowing deep dangerous black