Have you ever heard of ** bones?Maybe some friends will be very surprised when they see the words "**bone", how can there be bones in it?
In fact, most mammals have ** bones, including but not limited to primates such as monkeys, orangutans, and marine mammals such as whales and walruses, ......
If you have not learned about this before, you will feel strange after hearing about the bones, but in fact, humans without bones are a special case in mammals, especially in primates, bones can be said to be one of the standard features of physiological structure.
So what is the reason why human beings have become a special case without ** bones, and is the loss of ** bones a good thing or a bad thing for human beings?Let's answer them one by one.
* Bone is actually a bone in the animal, and in mammals, our common cattle, sheep and horses and other animals have this kind of bone.
These bones, which are present in different species, also vary greatly because of the differences in these species themselves. This difference is not only reflected in the size of the model, but also in the various functional properties of the ** bone.
For example, because whales live in the sea, they face strong water pressure everywhere, so their bones are softer and can bend freely.
In order to complete mating more quickly, insects often have very small bones, so as to shorten the time required for the mating process and ensure their own life safety.
Chimpanzees, the closest relatives of the animal kingdom to humans, although they look very robust, their bones are the smallest compared to animals of the same size, only one or two centimeters, which seems to confirm that the smaller bones are a trend in the evolutionary process.
And we humans have simply discarded this bone in the process of evolution, so what is the reason for human beings to choose to give up, and what is the impact of the evolution of this physiological trait on human beings?
Let's start with the bone itself to see what advantages and inconveniences the existence of bone can bring to the species.
The existence of this hard bone brings stability to the animal. Animals face many threats in the wild, and they can be targeted by higher-level predators at any time.
For them, mating is a time-consuming and laborious act that reduces their attention and vigilance to their surroundings, and is really a joke with their own lives.
With the support of the first bone, the mating between animals will be much faster and more stable, and the task of reproduction can be better completed.
*Bone also embodies the sense of competition of males in animal societies. Although there are some potential rules in animal society, they are certainly not as civilized as us humans in general, and are cruel and barbaric.
Mating between animals is also usually almost one-off, completing the task of reproducing offspring during the estrus season.
The mating process of animals is very different from the mating process of humans, and the mating process of human beings is generally an add-on to the basis of love, which is the crystallization of love.
But the mating process of animals is more of an instinctual drive. In the process of animal mating, the female side may not be willing, and this process relies on the law of survival of the fittest and the law of the jungle.
Without the presence of ** bones, the mating between animals may be much less, because the mating process may be interrupted at any time due to the resistance of the female, and the continuation of the race will also be affected.
Therefore, ** bone is still very important for animals. I have to say that the creator is still very magical, and every physiological structure of animals can match their Xi and living environment.
In addition, the anterior part of the ** bone of some animals has a slight bend, which can be used for them to scrape out the sperm left by the previous male, so that their sperm can be combined with the egg first, so that their offspring can continue.
Even the skeletal structure of *** is helping the owner to establish an advantage, and the cruelty of competition in nature can be seen.
But the existence of ** bone is not all good things, hard lack of toughness ** bone can easily become the Achilles heel of animals, in the natural world where life and death struggle may occur at any time, ** bone often becomes one of the most easily broken bones.
After the animal's ** fracture is broken, even if it can get away with it, it is difficult to have the ability to mate and reproduce.
In the process of evolution, human beings gradually lose the structure of ** bone, which reduces the stability of human beings during mating, but in fact, it is also in line with human social Xi, in general, it is the performance of human evolution.
The mating process of humans is different from that of animals, and aside from a few sexual crimes, the vast majority of human mating processes occur on the basis of a certain relationship between two people.
The mating process of human beings is more continuous, and the mating object is more singular, and the role of ** bone is somewhat redundant.
Due to the limited number of human fossils in ancient times, and the scarcity of other reliable data, we cannot determine when humans began to lose ** bones, nor can we compare the before and after conditions of human beings with or without ** bones, let alone directly judge whether this is an evolution or degradation.
However, judging from the nature of human mating mentioned above, ** bone is indeed dispensable for humans.
If we do not make longitudinal comparisons across time, we can choose primates such as chimpanzees and gorillas that are closely related to humans.
Although their ** bones are smaller, they still retain this feature. Compared with humans, they have lost their bones, but their size is larger. It is not very good to evaluate which of the two is better or worse, and you have your own conclusion in your mind.
In the long evolutionary process, in addition to the loss of ** bones, human beings have many important physiological structural changes. The most obvious is the loss of body hair and the loss of tail.
There are also various hypotheses about these evolutions in the biological community, each of which sounds plausible. And the doctrine that is more reasonable, can achieve a basic logical closed loop, and has a relatively high reputation among the people is to use the doctrine of entry and abolition.
Body hair, a body organ that protects against cold and warmth, did seem redundant after humans began to cover their bodies with clothing. The tail, as an extension of the spine, is a part that can strengthen balance and flexibility, and many vertebrates also have tails, and there are dense muscles on the tail that allow their tails to swing around flexibly.
However, after humans walk upright, the tail also changes from positive to ***, which consumes more energy in vain when walking. From the perspective of use, it is also very reasonable that these organs and parts of the human body are abandoned by human beings after losing their original functions.
Therefore, on the whole, the changes in the various physiological structures of human beings are still in a state of progress. This is also in line with the fact that human beings are gradually becoming the dominant ones on the earth, after all, if the various evolutions of human beings are not reasonable, I am afraid that there will be no human beings on this planet now.
The various phenomena in nature seem to be strange, but when you think about it, each has its own reason, and it is the result of adapting to the living environment in which the species lives.
Although human beings have lost their bones, the mating process does not have higher stability without the blessing of bones, but this is also more in line with the characteristics of human mating and monogamy, and the mating phenomenon in the animal kingdom will obviously seem absurd and unethical in human society.
Therefore, from the perspective of physiology, just from the perspective of social ethics and civilization, the loss of ** bone is absolute evolution. If you have any other opinions on this phenomenon, you can also speak freely in the comment area.