Explaining The Ocean on Instagram: "Octopuses are highly intelligent marine animals belonging to the class Cephalopoda, which also includes squids and cuttlefish. They are known for their eight flexible arms lined with suckers, their ability to squeeze through tiny spaces, and their skill at camouflage thanks to specialized skin cells called chromatophores. Octopuses have a soft, boneless body, three hearts, and blue, copper-based blood that helps them survive in low-oxygen environments. • #reel