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 and aggressive, 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 squid, is an eye-opening suborder of Cephalopoda Sheath, a mollusk. The body is cone-shaped, pale with light brown spots, with a big head, touching feet 10 in front, and the fleshy fins at the tail end are triangular, often swimming in groups in the ocean about 20 meters deep.