octopus octopus vulgaris swimming on a front view silhouette found in map of ocean all around the world.

animal black body book brain camouflaging capabilities concern content contractile crabs crawl cuttlefish design elements excellent fish highest icon illustration intelligent isolated least logo memory mimic mollusca moving ocean octopus omnivore organs paralyses pigment poisonous print rock saccular scallops sea seabirds sense sensory shallow silhouette slowly smartest smooth squids swimming symbol temperate traveling tropical vector vulgaris water waters wild wildlife