Anatomy & Physiology
13 entries in the Big blue octopus compendium.
ChromatophoresA living pixel in the skin, flickered by nerves to paint the ocean in a thousand shades.MantleOne tissue layer that builds the shell, breathes for the animal, and powers the jet.SuckersA hundred tiny mouths that grip, taste, and let go—all in one flicker.RostrumThe only hard thing about an octopus, and the one that does all the killing.Systemic heartThe systemic heart refers to the left-sided pumping apparatus of the mammalian and avian heart—the left…HemocyaninThe blue blood of the sea, carried not in cells but in open, copper-laden plasma.Decentralized nervous systemNo brain, no bottleneck—just a living mesh that thinks in every direction at once.Ink sacA tiny muscular vault that fires a black cloud to buy a cephalopod its escape.FunnelOne muscular tube, one jet, and the entire ocean opens up.StatocystA mineral-laden sac that tells a squid which way is down in the pitch-black deep.BranchiaeThin, blue, and endlessly pumping—the living membrane that lets a mollusc breathe the sea.OcelliA pinhole of light-sensing simplicity that lets the ocean's smallest invertebrates read the sun without…WebA living web of collagen and water that beats like a heart without one.
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