common cuttlefish in closeup on a black background, funny aquarium pet

animal animals aquaculture aquarium background black cephalopod cephalopoda cephalopods closeup common cuttle cuttlefish cuttlefishes cuttles face fish fishes funny head ichthyology isolated isolation life little marine mollusc molluscs mollusk mollusks night nocturnal octopus octopuses officinalis pet pets portrait predator predators predatory sepia sepiida squid squids tentacle tentacled tentacles zoology