Description:The Adele penguin...revealed as one of the world's great hunters. With a miniature camera on its back, the penguin attacks its prey with ruthless efficiency, gobbling an average of two krill per second. In a feeding session lasting an hour and a half the bird consumes 244 krill and 33 small fish. None escape. On another bird, an acceleromoter measures beak speed as it attacks.(1:36)