Each sucker can be controlled individually by the brain. Most species of cephalopods possess suckers that are attached to the arm or tentacle by a stalk. The sucker itself is a cup-shaped bowl of muscle. Many suckers are lined with small teeth or hooks that provide a greater hold on slippery prey like fish. The suckers and accompanying teeth vary greatly in size and shape amongst squid and in some species the teeth are very large and the suckers greatly reduced.
Some species have retractable claws like a cat.
Cephalopods feed with a tongue-like radula and a large pair of powerful beaklike jaws located in the buccal cavity at the center of the arms. The beak can bite and tear off bits of tissue that are then pulled into the cavity by the radula.