Related to cuttlefish and squid, octopus are cephalopods, or “head-footed,” referring to the eight “legs” that sprout from their head. They also have a parrot-like beak for crushing prey such as abalone, crab and lobster. There are more than 140 species in temperate and tropical waters throughout the world, ranging in size from a few ounces to over 100 pounds. Octopus are taken from tide pools and at depths of several hundred feet, where they inhabit small, dark crevices in the ocean floor. Primary octopus suppliers are the Philippines, Thailand and Korea. Hawaii and California are domestic sources. Octopus often are caught in unbaited “habitat traps,” into which they willingly crawl. Octopus are amazingly dexterous at hunting and fleeing. Most biologists consider them the smartest of all invertebrates, on par in intelligence with the house cat. When frightened, they emit an inky black substance.