Who is the octopus? So accurate! Thank you, everyone.

It's Paul. Not Spongebob's best friend! ! Before the focus war between Germany and Spain, apart from the preparations for the two teams, people were most concerned about the magical octopus Paul. This time, in the expectation of everyone, Octopus predicted that Germany and Spain would be in the semi-finals of the World Cup, and finally it chose Spain. The results of the game were announced. Spain10 beat Germany to advance to the final. As far away as Oberhausen Aquarium in Germany, the magical octopus Paul once again accurately predicted and guessed the German team six times, almost becoming a god. Predict why you choose octopus: it has a high IQ. Because of the World Cup, Paul the Octopus is red and purple. Then some people will ask, why did the Germans choose octopus to predict the game instead of crocodiles, sharks, whales or giant salamanders? In fact, rigorous Germans all know that octopus is an extremely intelligent marine animal. Octopus has a well-developed brain and can distinguish itself in the mirror. It can also walk out of the maze designed by scientists and eat crabs outside the maze. It has three hearts, two memory systems and 500 million neurons in the brain, so it can be called an escape expert. In order to avoid being killed by predators, octopus will walk on two feet to escape besides the well-known mimicry camouflage and wrist folding. In the tropical waters of Indonesia, an octopus named Maginettes was photographed. In the face of danger or divers, this octopus will bend and fold six of its eight claws upwards to make a coconut shell, while the remaining two claws will stand on the bottom of the sea and secretly move backwards, striding backwards to escape like a moving coconut. The posture is funny. Another octopus, Akulitus, is as big as a walnut. It can also walk on two feet, but the other six feet extend outward to simulate the appearance of seaweed. Obviously, the octopus's wrist has no joints, no bones or skeletal muscles, but it did it. Biologists believe that this kind of wrist-foot activity of octopus is very unique, and its camouflage skills really need a little brain. It turns out that octopus has conceptual thinking and can solve complex problems by itself, which gives it the ability to walk on two feet. Because octopus is considered as the smartest invertebrate, Germans choose octopus to predict the World Cup. The secret of winning streak: Germans played tricks in this World Cup. Paul octopus only predicted the German game and won five consecutive victories. It turns out that octopus prediction is a trick played by Germans. Some people may ask, why don't other countries use octopus to predict the victory or defeat of their teams? The answer is that the color of the German flag is exactly the color of octopus's favorite food. Stable structural myoglobin is a necessary condition for octopus to survive in the deep sea. Octopus is keen to eat crustaceans such as shrimps and crabs because of astaxanthin. Astaxanthin is the strongest antioxidant and a necessary condition to ensure the structural stability of myoglobin from oxidation. Shrimp and crab are rich in astaxanthin, and the red substance of mature shrimp and crab is astaxanthin. So the rule of the game is that these foods must be in the container covered with the national flag to attract octopus to climb in. The German flag is black, red and Huang San, which is octopus's favorite food color. It is clearly two prawns hiding in the dark. He definitely prefers to attack such targets. The national flag of Australia is Deep Blue+Redmi. Octopus thought the food was too small to choose, so Australia lost. There is not only a red shrimp but also a red crab on the flag of Serbia. Octopus found it more attractive, so it didn't choose Germany, and Germany lost. It stands to reason that Ghana's national flag is similar to that of Germany, but it is precisely because of that five-star that the octopus thought it was impurity or dangerous and chose Germany instead, so Ghana lost to Germany. What about England? An eye-catching Red Cross offended Octopus, but prompted Octopus to choose Germany, and England was defeated. It's Argentina's turn. Without the color that attracts octopus, defeat is inevitable. Yesterday, before Paul predicted, it was analyzed that Germany had no chance to face Spain in the semi-final. Because the flag of Spain is three prawns and a crab. As a result, Squidward Tentacles chose Spain. Link octopus is not color blind in the vast nature. Almost all mollusks are color blind, and most of their eyes have degenerated. Octopus is obviously not color blind. Octopus is rich in cone cells and rod cells, which can distinguish colors sharply. Octopus's eyes are very similar to those of vertebrates, including cornea, lens, iris and retina, which can focus and image. But it is different from vertebrate eyes because it focuses light by adjusting the distance between the lens and retina, while vertebrates focus light by changing the size of the lens. Octopus can recognize the shape, color and texture of objects. Another difference is that octopus's eyes have no blind spots, and its nerve cells are outside the eyeball.