Look at all the neuromasts on the head of this predator. What a cool fish. All those spots and holes are part of the pike's lateral line -- the sensory system used to detect movement and vibration in the water.
excerpt: Frost and Kipling (1967) also studied the technique of prey capture of young northern pike. The pike "marks down" the prey which it stalks stealthily to within a certain distance and then, before striking, flexes its body. This gives the impetus for the lightning dart forward strike. The prey is grasped crossways in the mouth and firmly held by the backwardly projecting teeth. Then it is swallowed head first.