An octopus is classified as a cephalopod. This class of mollusks includes other sea creatures like squids and cuttlefish. Cephalopods have a complex body structure characterized by a well-developed nervous system and eyes that are similar to those of vertebrates. Octopuses are known for their remarkable intelligence, dexterity, and ability to camouflage, showcasing their adaptability to different environments. They possess eight distinct arms, each lined with suckers that enhance their ability to manipulate objects and catch prey.