Darwin once put forward the theory of "natural selection, survival of the fittest" - in nature, "competition" can be seen everywhere. Although creatures often compete to kill each other, it is not difficult to find that creatures of the same ethnic group cooperate with each other from time to time, live together, and work together to maintain the survival advantage of the ethnic group. But do organisms cooperate across species? The answer is yes. Part of this documentary is about the cooperation between South African boobies (Cape gannet) and dolphins. Sea_2_1 Thousands of South African bonitos live on Bird Island, and they need to find plenty of food to feed themselves and their young. Every year, thousands of South African boobies are lookinths to the surface.
The purpose of this move is to prevent the fish from finding a way to escape. However, as long as the fish continue to circle and defend, the dolphins Special Database are helpless. The trajectories of the fish can dazzle them, making it difficult to lock on to the target and fail to catch the fish. So can it be that dolphins can only watch the "fish ball" turn with white eyes and have no way to start? of course not. When schools of fish are forced to the surface, that's when the South African boobies come into their own. While the dolphins are in action, the South African boobies are not idle either.
They will follow the dolphin's footsteps and wait for the opportunity in the air. When the dolphins force the fish into a ball and make them swim close to the surface, the South African boobies will launch an "air attack" - diving from the air into the water to catch the fish Son. This action will also break through the formation of the school of fish. It is not easy to rush into the water at high speed to forage. Just like diving, if the posture is not right, the athlete will collide with the water surface with a "pop" sound, which is very painful. South African boobies also need to fully straighten their necks to streamline their bodies so as not to injure their soft necks.