How does natural degeneration in the animal kingdom occur?

There are many animals that are "neither male nor female" in nature, but most of them occur in lower marine life, which is not something to be ashamed of, it is a survival strategy. In "Animal Management", Wang Ziwen played Huang Eel Jing has a cold appearance and a delicate heart, and it is very interesting in the play that when her heartbeat exceeds 180, she will become a man, and after the age of 23, she will completely become a man.

Yellow eel. It is very simple to distinguish the sex of yellow eels from them, generally the larger eels are male, while the smaller eels are female. This statement may seem normal to everyone, because in many species, the male is larger than the female, for example, the African male lion is significantly larger than the female lion, and even in humans, the male will be taller.

However, the relationship between body size and sex is different from that of other animals, because yellow eels are male and female animals, and when they are born females, their ovaries will gradually mature, but the sperm nest will be suppressed and will not develop. When the eel undergoes an egg-laying process, the ovaries gradually fade and the sperm nest begins to develop, which means that the eel has changed from a "little girl" to a "big uncle".

Atlantic scallops.

This is a shellfish that lives off the coast of North America, they also belong to the male and female conversion animals, males will often wander on the bottom of the sea, and most of the females are fixed, when the male scallop finds a suitable mate, it will lie on its shell, and after a period of time, the male scallop will transform into a female, so the Atlantic scallop continues to change gender, but it is generally impossible to reverse.

There are also snails, earthworms, barnacles, and fish doctors. This way of male and female transformation is conducive to the development and reproduction of the population, and it cannot be said that this way is low-level, which is a very good survival and development strategy.

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A: The natural degeneration of the animal kingdom is determined by the conditions in which animals are suitable for themselves.

Some animals have to wait for the time to develop and reproduce, and then the phenomenon of degeneration occurs naturally.

In nature, not all organisms can be naturally denatured, and the organisms that can be naturally denatured also conform to the laws of nature, and those organisms that can be denatured are also changed in the process of reproduction.

This is due to the formation of new combinations during mating and breeding, which can vary greatly. The result is natural denaturation, which is a particularly magical process.

In fact, in nature, survival of the fittest is the last word, if you encounter some animals to develop to reproduce, their own condition response will be naturally denatured, this is in accordance with the laws of nature.

Categories: Education, Science, >> Science & Technology.

Problem description: For example, a yellow eel is born as a female, and when it gives birth to its first calves, it automatically becomes a male!

Analysis: Organisms that are able to naturally change sex, whether they are small crustaceans or large fish up to a meter long, degenerate when their body size reaches 72% of their maximum lifetime size.

Many lower aquatic organisms with only a simple reproductive system undergo natural degeneration. Among the various transgender organisms, half of the individuals are changed from male to female, and the other half are from female to male. No matter how they are denatured, they can successfully breed offspring after degeneration, and they are both fathers and mothers.

Althorp and West studied hundreds of naturally denatured organisms such as fish, worms, shrimps, mollusks, etc., and found that they all followed the law of 72% of the maximum volume of the time when the moment of degeneration occurred. "Of the 121 organisms we studied, 98 percent of the changes in body size when they were denatured were consistent with the '72 percent rule,'" David said.

Althop and West recently reported their findings in the journal Nature and believe that when the organisms reach 72% of their maximum size, something triggers the denaturation process, but they are not sure what it is.

"Our observations suggest that those factors that influence biological denaturation are strikingly similar in all organisms," West said. More generally, it is astonishing that in so many very different species, a common growth and reproductive trait can be explained by very simple theoretical concepts. ”

There are many amazing animals in the world, and the natural degeneration of animals is from male to female, and there may be such creatures in the world, and they must also be for survival, and it is impossible to do so for no reason.

There are also cases of sex change in the animal world, and there are many animals that will be changed in the process of reproduction, in fact, this way of changing the male and female is conducive to the development and reproduction of the population.

In order to perpetuate their population, some animals have the magical ability to change their sex. After passing the gender change, the purpose of strengthening the race can be accomplished.

Naturally denatured is to meet one's own needs in the natural world, because this natural world has great changes. They will undergo such strange changes in order to live a better life.

There are a lot of animals in the process of reproduction, and then there is a genetic change, in this case, the animal has a natural denaturation, which is why the animal will be denatured.

Don't quite understand, do you want to ask Shihong Congla? In general, if the nature of the life is natural, it is due to the need for the continuation of the race, but it doesn't seem to have anything to do with humans. . .