The Giant Pacific Octopus is the largest known species of octopus. The mantle, the highly muscled structure that houses all of the animal's organs, length can be up to 23.5 inches; and the overall length can be from 9.8 to 16.4 feet. Weight can range from 60 to 100 pounds. Normal coloration is reddish-brown, however, they can change color and alter the texture of their skin. Experts at camouflage, they can smooth out and be a uniform color when on rock and become bumpy and blotchy in seaweed. Between their arms are webs of skin, and when they capture prey, they hug it tightly, bite it, then soften it up with digestive enzymes. The octopus has no bones, so it can squeeze itself into tiny places, sometimes only a few centimeters wide. The size of its beak, the only rigid part of the body, determines where it can fit.