Have you ever seen such a scene in life? A fly kept rubbing his head with his hands. After a moment, its head was rubbed off by itself.
But the flies that lost their heads did not die immediately, and they could fly around everywhere, and their lives were not affected at all, but they just couldn't eat anymore.
So, why is this? In this issue, the editor will take you to learn about the creatures in nature that can still survive if their heads are lost, and the secrets that they can survive.
flies
flies, in order to stay well on the surface of various foods, their legs are covered with a lot of fluff.
And these villi have a big side effect during their eating process. It will be contaminated with a lot of food residues and dust, which will increase a certain amount of weight and affect their flight.
For this reason, flies will constantly rub their hands and heads during their eating process to wipe away food residues and dust from their hands.
And their heads are not connected very tightly to the body, so their heads will rub their hands and heads constantly.
But the flies that are rubbed off in their heads will not die immediately. But like normal flies, they can fly and climb, but they can't eat. So, why does this phenomenon occur?
This is because the fly breathes not on the head, but on the stomata in the abdomen.
and their blood circulation system belongs to the "open-tube circulation", and the blood is scattered in the body, not in the blood vessels. Therefore, even if their heads are broken, they will not die from being unable to breathe or bleeding. Of course, it won't survive for a long time.
Because flies need to keep eating to maintain normal life activities. And the headless flies cannot eat. As a result, they will soon be starved to death.
snake
snake is an animal that many people are very afraid of, and some people even talk about snakes and are afraid. It can be said that humans' fear of snakes is engraved into their genes.
And the terrible degree of snakes is not only their venom, but also their tenacious vitality. CCTV's " approaching science " column team once conducted an experiment like this:
experimenters took the common viper , silver ring snake and cobra as experimental subjects. At the beginning of the experiment, the experimenter cut off their heads and then observed whether their heads could still make biting movements.
After experiments, it was found that among these three snakes, except for the cobra's head, the snake head, did not bite people after 10 minutes. The snake heads of vipers and silver ring snakes still bite people even after 20 minutes.
and the experimenter also told reporters that because the three snakes selected were all weak and sickly, and the weather was relatively hot, the snake head may survive relatively shortly.
If under normal circumstances, the weather is also relatively cold, the snake head may survive for more than one hour. Even after three or four hours, you may still have the ability to bite people.
Therefore, when you meet snakes in the future, you must try to stay away. Prevent him from being ruthlessly "revenge" if he is not beaten to death. So, why does this happen?
Because according to experimental studies, the snake's central nerve is distributed throughout the body. Therefore, most of the behaviors of snakes can be done independently without going through the brain.
And the snake can still maintain a certain activity within one hour of being killed. So when the cut-off snake head feels danger from the outside world, it will instinctively make biting actions.
flatworm
flatworm is a parasite that lives in water. Although their body length is only 2 to 3 cm, they have a complete digestive system. American geneticist Thomas once cut a flatworm into
279 portions, each portion less than 1 mm.Surprisingly, most of the flatworm body tissues smaller than 1 mm have grown into new individuals, and only a small part of them have died.
What is more amazing is that these newly grown individuals still have the original body memories. In other words, the flatworm has successfully achieved the highest level of cloning - perfect cloning.
If we humans master this technology, it means that we can achieve eternal life. So, why do flatworms have such magical abilities?
Through research, it was found that the whole body cells of flatworms are all all-powerful stem cells . Like human fertilized eggs, this cell can be transformed into any organ cell and various tissue cells.
That is to say, once something is missing in the flatworm's body, it can be regenerated through the re-division and differentiation of stem cells , so as to grow whatever is missing.
This is all for sharing with you in this issue. I hope you can like and support it. In addition, if you have any questions or additions to this issue, please leave a message in the comment area to share.
