Octopus is octopus, which evolved from cephalopods. Generally, the body is very small, and the eight tentacles are thin and long, so it is also called "Octopus".

Octopus is extremely powerful, cruel, aggressive and resourceful, and many marine animals are afraid of it. The body is short oval, with big compound eyes and 8 retractable wrists on the head. Each wrist has two rows of fleshy suckers. Octopus's skin changes color when it is in panic, excitement, excitement and other emotional changes.

Squid, also known as soft fish and cuttlefish, is an eye-opening suborder of Cephalopoda Sheath of Mollusca. The body is conical, pale with light brown spots, with a big head, 1 touching feet in front, and the fleshy fins at the tail end are triangular, often swimming in groups in the ocean about 2 meters deep.