Cephalopods, a World Guide

Octopuses, squids, cuttlefishes and their relatives ("cephalopods") are some of the most "alien" creatures on earth. They have complex behaviours and many are experts at spectacular color and shape changes. They come in all shapes and sizes, from pygmy octopuses to giant scams (> 15 m long), and occur from shallow reefs to the deep sea (> 7,500 m deep). This guide includes information and images for species from around the world as well as general stories on their unique lives and bizarre habits. With over 800 photos of cephalopods taken in their natural habitat.