These help to move food into the mouth. Cuttlefish also have two longer arms which they actually use to capture food. Cuttlefish normally swim by moving a narrow fin that extend along the entire length of the body on both sides. This pulsates rhythmically to move the water. Cuttlefish can also move at high speed in the same way that squid do that have a funnel-like tube behind there head that they can also use to propel themselves through the water.
Cuttlefish have a large brain are able to remember simple tasks.
Cuttlefish are also famous for their color changing ability. If they feel threatened and wish to hide, they simply drift to the bottom and their skin color will change to match the background. This ability is also used during courtship to impress mates. This is ground and used to polish objects. Approximately 150 species of octopus, the last cephalopod included in this report, are known to exist.