Use bold words from the passage on pages 39-40 to complete this paragraph.

Cephalopods can change the color and pattern of their . They use special cells that contain colored , or pigment. For example, male squid that are fighting change their pattern to show that they are . A squid that is for a mate makes its skin more attractive. By changing the way it looks, a squid can send many messages. With such a special skill, cephalopods are truly creatures.