What separates Cephalopoda from others?

Cephalopoda, which includes octopuses, squids, and cuttlefish, are distinguished from other mollusks and marine animals by their advanced nervous systems, complex behaviors, and high intelligence. They possess unique features such as a well-developed head, large eyes, and specialized arms lined with suckers. Additionally, cephalopods have the ability to change color and texture for communication and camouflage, thanks to specialized skin cells called chromatophores. Their jet propulsion locomotion and ability to quickly adapt to their environments further set them apart.