Octopus (scientific name: octopus)

Vulgaris), also known as octopus, stone house and dead cow. It belongs to the order Cephalopoda of Mollusca, and is the general name of Octopus. It is called "Eight Wrists" because it has eight wrists on its head, and there are membranes between the wrists, which are of different lengths, and there are two rows of sessile suction cups on the wrists. It is a marine animal, not a fish.