Plush Octopus Puppet 13" 13" span The 150 species of octopus belong to the mollusk family. They are found throughout the world's oceans, most commonly in warm seas. Octopi range in size from two inches to a giant 32 feet across the arms of the Pacific octopus. Octopi are masters of camouflage: they can not only change color, but also shape and skin texture. Octopi have well-developed eyes enabling them to see all around. It has a large brain with quite a capacity for learning