British wildlife photographer Christopher Swann swam right in the middle of this hectic struggle for existence to take these photos off the coast of the Azores in the Atlantic Ocean. Thousands of mackerels gathered in a huge shimmering ball 30 feet in diameter to protect themselves from the predatory attack of dolphins and sharks. But as they approach from deep water to shallow water, flocks of birds of prey begin to bombard them from above. Attacked from all sides, mackerels in desperation just wait until predators satisfy their appetite.
Christopher Swann, a professional diver and diver, became a photographer and writer many years ago. He repeatedly took part in serious studies of the deep sea, made many interesting photographs and useful research. Since then he has worked for the French submarine company Comex as a technical photographer in the North Sea oilfields and on the administrative staff of a small independent oil company in Indonesia. He took these photographs during one of his expeditions. Seeing such an action it was impossible not to start filming.