Why didn t the golden cicada move before it shed its shell?

When the cicada is young, there is a relatively hard skin on the surface of the body, which prevents the outflow of substances in the body, and can prevent harmful substances from the outside world, which can protect the young cicadas. But when the cicada grows, it restricts its growth, so it has to be shedding its shell. to grow up.

The larvae of cicadas begin to emerge from the ground and climb onto tree trunks, branches, or crops, grass blades for sessessation of the body. The shedding of cicadas is concentrated between 9 and 10 p.m., and the rest of the time is less so.

After fixation, the body does not move, as if it is dead. A hole began to crack on the top of the head, and the body slowly came out. It takes about 1 hour from the crack to the complete exit, and after the shell is shed, the wings and body are soft and white, and they cannot fly at this time.

After about 1 hour, the body slowly turns black, and I also have the ability to fly.

The shell is left in place.

1.He's spotting you, he's playing dead.

2.It takes physical strength to shed the shell, he climbed for a long time, and he needs to rest when he is tired.

3.We can't fully believe that there is a difference between life and textbooks.

4.The golden cicada shedding its shell is a means of survival for him, and he does not take it off until necessary.

It's so funny, you're writing an essay, right? Biologically, it stops there and brews to shed; There is also Ken can be in danger and stop to disguise.

You don't move around when you go to the toilet.

Because Li Zheng Jin cicada, like most insects, does not have a skeletal system, and it is the shell that plays the role of bones on the body. But the shell does not continue to grow, so when the golden cicada grows up, this shell will limit the growth, so it needs to be replaced with a new shell, and molting is the way to change the shell.

At a certain time, the larvae of the golden cicada will molt once, and the mu will molt a total of five times. When you climb out of the ground, you will enter the Naisson line for the last time to shed its shell, and the golden cicada will have the ability to fly after shelling.

After four molts, the cicada will choose to emerge from the ground in the evening around the summer solstice. Choose the nearest tree, climb to a certain height, the body will be fixed, do not move, and then begin to "shell", generally the shelling of the golden cicada is concentrated between 9-10 o'clock in the evening.

After the golden cicada was fixed on the trunk of the tree, its body did not move, and a hole began to crack above its head, and its body slowly came out. It takes about 1 hour for the golden cicada to shed its shell, and it will not be able to fly after shedding, and after about 1 hour, the body will slowly turn black before it has the ability to fly.

It is to complete the transformation of the golden cicada to the knowledge. <>

The "monkey" is actually a nymph of the cicada, and its scientific name can be called the golden cicada. After the step of shedding its shell, the golden cicada will eventually become a real cicada. The cicada song we hear every summer is the adult stage of the cicada, which is ripe for the breeding season.

The male cicada makes a crisp sound by the buzzer on its abdomen, while the female cicada has more developed ovipositors, so it preempts the buzzer's position, so the female cicada does not "sing". <

June to August is the spawning period of cicadas. They pierce deep egg chambers in the branches through ovipositors. Generally, there are seven or eight fertilized eggs in an egg chamber.

Some fertilized eggs hatch in the same year, while others hatch in June-July of the following year after wintering, and the nymphs that hatch feed on the sap of the trees. After a few days of development, the nymphs fall from the tree into the soil, and then burrow into the soil to grow for 3-5 years, which is also the nymph stage of this species. When it grows to the last larva, it is the time when it is about to emerge, because it will soon become an adult and reproduce in the next generation, and we can call it the golden cicada.

Golden cicadas belong to insects, and their bodies are rich in nutrients, with a protein content of more than 70%. In addition, it contains up to 7% of the fat of Zen residue, as well as a variety of vitamins and trace elements. So there are many natural predators, especially birds, who like to feed on cicadas.

Birds and other predators carry out most of their activities during the day. If the golden cicada burrows out of the ground during the day, there is a high chance of being eaten by birds. In addition, the golden cicada's ability to move is limited, especially when molting.

If this state is in the daytime, it will not only increase the risk of predation by natural predators, but also increase the risk of water loss under strong solar radiation, posing a serious threat to life and health. As a result, the golden cicadas that broke through the ground during the day in history were either eaten or dehydrated and died. Only those who go out at night will be saved.

So, what we see feels like a golden cicada shedding its shell, which is essentially a result of biological evolution and survival of the fittest.

Because the golden cicada does not have a skeletal system, it is the shell that plays the role of a skeleton in the body. However, the swim shell will not continue to grow, so when the golden cicada grows like Qingda, this shell will limit the growth, so it needs to be replaced with a new shell, and molting is the way to change the shell.

<> when the golden cicada sheds its shell, the larvae will generally climb to the trunk, branches, crops or grass blades at night, and after fixing the body, a mouth will begin to crack from the top of the head (the top of the golden cicada's head to the back of the chest**, there is a molting line, which is the cracking line when the adult worm emerges), and then slowly burrow the body out of the inside, it takes about 1 hour from the beginning of the crack to completely drill out, and the adult body is relatively soft, and it takes about another 1 hour to have the ability to fly.

Tips: The golden cicada is a wild protected animal, and the protection of wild animals starts from itself, refuses to buy and sell wild animal products, and does not interfere with the free life of wild animals. At present, the consumption of rare and endangered wild animals in society is not only a bad social habit, but also one of the reasons for the repeated prohibition of illegal hunting and killing of rare and endangered wild animals.

If there is no trade, there is no killing, and the consumption of wild animals is not eliminated, they do not belong on the table.