Octopus simple strokes

Octopus (Octopus vulgaris) It belongs to the order Octopus in the phylum Cephalopoda and is the general name for animals of the genus Octopoda in the family Octopus. Because there are eight arms on the head, and the wrists are connected by membranes of different lengths, and there are 2 rows of stemless suckers on the wrists, so it is called the "eight-armed species". It is a marine mollusk, not a fish.