close-up of an octopus

octopus cephalopod sea creature marine ocean animal life nature underwater biology zoology wildlife water coral reef gills skin tentacles eyes mouth beak suckers pattern texture color red pink orange closeup macro science study research aquarium conservation wet slimy soft delicate curious intelligent smart camouflage hiding hunting predatory symbiotic close-up view showing intricate large eyes octopus#39aph39#s partially visible slight hue