People who love to read, there are always two fairy tale books around. Fairy tale books are attractive because mysterious stories are full of magical beings, and the little animals in fairy tales are omnipotent. At the same time, I thought of a familiar old song “Fairy Tale”: “You cry and tell me that fairy tales are all lies.” Are the stories in fairy tales true or not? Today we will talk about it.
In the story of “The Crow Drinks Water”, a clever crow uses a small stone to raise the water level in a tall bottle and finally drinks water. Are wild crows really that smart in the real world?
The truth is: In the wild, no corvids have been observed to use stones to raise the water surface; but in the laboratory, corvids can learn this operation completely after training. Some researchers have done experiments with bald-nosed crows and jays. In a tall bottle filled with a small amount of water, a small floating worm was placed as a bait. stones to raise the water level. Not only that, but they can also figure out the law that small stones are not as good as big ones, heavy objects are better than lighter objects, and bottles with solids are not as useful as bottles with liquids. This IQ is definitely beyond the reach of ordinary small animals, but wild crows are not so smart yet.
The magic of birds in fairy tales can be said to be supernatural, as in this fairy tale: “A little bird flew across the Pacific Ocean with a branch in its beak. Come to rest and find food.” Does this ocean-crossing bird exist?
In fact, we use the simplest buoyancy formula to calculate, we can know that a branch that can carry a bird on the sea is absolutely impossible for the bird to move. The most important thing is that the birds that have to migrate and fly across the Pacific do not need to rely on a slightly cumbersome branch at all. Their flying ability is very powerful, not only can they fly against the wind, but also have amazing physical strength. Just like the albatross that can be called a torrent among birds, flying across the ocean is simply “a piece of cake” for them. They can glide effortlessly through the airflow driven by the undulating waves. When they are tired, they use the sky as a cover, the sea as a shelter, and waterproof feathers as a quilt, and sleep soundlessly until the sun rises.
There is also a bird called the bar-tailed godwit that is also good at crossing the Pacific Ocean. This bird is only about 0.25 kilograms. Although it looks skinny and less fleshy, it has a body like a jet fighter with pointed and long wings. Its structure is also destined to fly lightly and quickly. There was once a bar-tailed godwit, code-named E7, when migrating over the Pacific Ocean in September 2007, at the expense of losing weight over the Pacific Ocean, putting an end to all eating and resting activities, and flew 11,587 kilometers without interruption, which took only 8.2 days. , it also honorably broke the bird record for continuous flight.
The “big brother” among birds – the ostrich, this kind of bird with a height of 2.5 meters, a huge body, and a fast running bird. In fairy tales, when it encounters danger, it will bury its head in the sand, cover its ears and steal bells, and pretend that the enemy can’t see itself. .
Presumably this kind of nonsense can only exist in fairy tales, not to mention that the ostrich has a pair of strong legs with excellent fighting power, enough to defeat the enemy with one move, and even repelling an adult male lion is a breeze. Even if it doesn’t want to fight and chooses to run away, it can reach a speed of 70 kilometers per hour, which is not something that ordinary animals can catch up with. Therefore, there is absolutely no such thing as an ostrich “burying its head in the sand”, not to mention that the habitat it is in does not give it a chance to bury its head in the sand at all, because it is too hard. This kind of misunderstanding of sticking the head into the sand is probably due to the unbalanced proportion of the ostrich’s body. Who made its head so small, the head is close to the ground as if it was buried in the sand, but how can it be blamed? !
