The IQ of the crow

At the beginning of this century, electric equipment basically covered small towns and main streets of cities, and at that time, the IQ of crows was tested to be equivalent to that of a six-year-old, that is, a first-grade primary school child.

First, it observes and has a strong memory. For example, when the municipal garbage is not sorted, it will remember which households in a certain community will throw away milk cartons, fruit cores and fish soup residues, etc., and it can also distinguish the taste of yogurt, such as strawberry and chocolate are not the same, and target different housewives. This behavior often occurs after dinner, so crows are more likely to borrow lights than just traditional moonlight. Observations have shown that the waste drop under street lamps is always reclassified by crows. There are multiple records showing crows being able to use lighters with their claws and not being afraid of fire. There are also experiments that show that crows can easily turn on the flashlight, choose to stand on the horizontal flashlight and roll forward, and finally find food.

At these stages, crows are generally friendly to residential areas, and electrical equipment, but will hate the noise and flickering lights of dances, bars and the like. For example, in the early 2000s, a tourist town of more than 20,000 people in Canada, people were partying like crazy, and suddenly the lights went out. The next day the power engineer found that the switch had been turned off. But this switch is high up, there is no ladder and no trace of people crawling upwards, who will do it? The engineers looked again at night and finally found that it was the crow-to-be father-to-be who was in the incubation period who flew to close.

The crow likes to eat nuts such as large walnuts, but it does not have the sharp teeth of squirrels and woodpeckers, what to do? It will borrow power. For example, in Tokyo this century, crows know that when they encounter red lights, cars will stop. After the crow obtains the ripe walnut from the park or farm, it will put the large walnut under the wheel at the red light; when the car passes after the green light, the big walnut is naturally crushed and broken, and the kernel becomes the crow's delicacy. This is still patient, and it is harmless to use.

The most prominent example of harmful exploitation occurred during this year's Tokyo Olympics. In order to protect the environment and recyclable green power generation on the field, the hosts have arranged large solar photovoltaic panels near the main sports venues. However, during the Olympic Games, there were warranty sheets for the partial destruction of photovoltaic panels every day. High-altitude monitoring found: it turned out that the crow found a new way to crush the big walnut, flew to the high altitude and then loosened, so that the big walnut fell freely on the photovoltaic panel, and naturally cracked. But such a large walnut falling impact is equivalent to a bullet flying.

The worst thing happened in Australia. The crow actually became the eagle's master, and the goal was also to stutter. In the mountains and grasslands, eagles are ideally captured by hares and marmots. Because foxes are cunning, herders' sheep are often guarded by large shepherds; when they prey on wolves, eagles do not have the certainty of victory against wolf fathers. But hares and marmots are always hidden in the bushes and crypts, and eagles can easily spot these prey but are unable to rush into the bushes because of their size. The crow's eyesight is certainly not as good as that of the eagle, but the brain melon is good. The crows would then find lighters left behind by shepherds, explorers, or tourists to light dead branches, and then the eagle would fly over the target area to drop incendiary bombs. It wasn't long before the area was in flames, and hares and marmots fled to the grasslands. After the eagles had eaten, the crows ate some more indiscriminately. So there will also be such a picture: in the high sky, the eagle is on the back of the crow, like enjoying the premium business class in the flight. But behind the crows is the destruction of the town's electricity facilities after the mountain forest fires and the expanded scope of the fires. At present, Australia has no response. (Wang Lingyi)