"Spring is here, the rainy season is over, spring is warm and flowers are blooming, everything is reviving, and it is the season for mating again! Male turtle lies on the female turtle, making a refreshing sound!" This is an explanation in "Animal World".
Although this line has undergone many adaptations afterwards and has even been spoofed by netizens for a while, it is undeniable that the sentence of teacher Zhao Zhongxiang is really a classic.
Because of this line, the appearance of this line not only elevates the entertainment of the program to an unprecedented level, but also reveals the instinct of animals - reproduction.
The "key" for reproduction------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
However, although the model of expanding animal populations is indeed a bit difficult to say in detail, it has to be said that this is the only way for a biological population to be inherited.
Moreover, this inheritance model is even earlier than the time when humans appeared. It should be noted that in the Triassic , Jurassic and Cretaceous period before humans, its overlord dinosaurs relied on "reproduction" to allow the race to continue.
If it weren't for the impact of the planet, we were afraid that in the present era, we would still be able to see dinosaurs.
But animals are not humans after all, and do not have the so-called higher wisdom. So how do they know that they need to rely on "reproduction" to inherit the ethnic group?
In fact, animals are born to know this inheritance method, and this understanding is engraved in the animal genes, and the key to open is the "estrus period".
estrus period, as the name suggests, is the period when animals are in estrus, that is, the period from when animals are willing to accept mating until they refuse to mating.
During this period, all mammals, especially females, will become extremely agitated due to the effects of sex hormones in the body, and a desire to mate appears.
For example, felines, during this period, female felines will start to howl, hoping to use this sound to attract the surrounding males to approach.
After this, when male felines are noticed approaching, they will lure the males into mating through intimate methods such as "tightening their tails" and "touching" to lure the males into mating, thus continuing the entire ethnic group.
Of course, the "howling" of female animals, or the smell of females, will only have an effect on males of the same ethnic group, which means that it is difficult for different races to achieve interracial mating results through estrus.
This phenomenon has evolved into what is called " reproductive isolation " in the biological world.
In addition, interestingly, the howling of female organisms in estrus will also induce male organisms to enter the estrus period.
Moreover, whether it is female or male animals, they will show some of the same signs during estrus.
For example, if the sexual organs are congested, or the energy becomes extremely strong, etc. During this process, most organisms may even experience physical overdrawal.
is still taking cats as an example. During estrus, male and female cats will stay up late and "stay up" and some will not sleep day and night in order to mate.
However, this is not because they would rather do so, but because the hormones are excited, it makes it difficult for the animals to calm down, so they become restless.
In addition, during this period, the restlessness of the animals will also extend a fighting spirit, especially when competing for mating rights, most male creatures will fight, and even if they are disabled, they will be spared.
And the reason why they are so "desperate" is mainly to complete mating and calm the excitement of this hormone.
Does humans, who are also mammals, also have the saying "estrus period"?
Human estrus period---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
However, humans actually have estrus periods, which are the so-called "ovulation periods".
It should be noted that the ovulation period is not the menstrual period. Under normal circumstances, the ovulation period will generally be around 14 days before the menstrual period.
Moreover, the manifestations of women in these two periods are very different.
According to current research, women will show abnormal docile during ovulation, especially for men, they will feel "attracted".
Under the influence of this "feeling", women's instinct will become a little "little girl" and will also choose to approach the men they like.
But if it is during menstruation, the personality of women is completely opposite. They will become irritable, and they are extremely impulsive, even more reckless than men, which is very terrifying.
, which creates this difference, is actually the same as animals, that is, hormones are at work.
Simply put, when women are in the ovulation period, the estrogen in their bodies will become extremely high, which will make them show corresponding female characteristics.
But if you are in menstrual period, the estrogen in the female body will drop rapidly. This rapid hormone changes will make women's emotions extremely unstable, which is what people call "exploding at a glance".
Since humans also have a "estrus period", why have they never seen humans estrus?
In fact, as mentioned above, if a woman enters the estrus period, that is, when she ovulates, she instinctively wants to get close to men. This is essentially a manifestation of estrus, which is similar to animals.
But the main reason why humans are different from animals is that humans have higher wisdom and restraint, that is, humans have the ability to restrain themselves, which includes desire and estrus.
This is why, when explaining estrus behavior during ovulation, the word "instinct" should be added, because for most women, even if they have impulses in desire, they can ultimately use reason to suppress this primitive impulse.
Of course, this is just for most people. After all, in today's society, there are many people who find it difficult to control their desires, and thus make various impulsive behaviors, and may even commit crimes due to this.
After all, humans, as primates in mammals, may have an additional need for "maturity".
Because, when world biologists studied gorilla , which is also primate , they found that gorillas frequently "mating" even in non-estrus periods.
At the same time, the frequency of this mating is also related to the age of the orangutan itself, that is, the younger the orangutan, the greater the physiological needs.
To a certain extent, this study also shows that primates are different from other lactation organisms in the matter of "mating".
Therefore, we have reason to believe that humans, who are also breastfeeding primates, also have the same physiological needs, but under the control of etiquette and restraint, many people choose to hide.
However, as mentioned at the beginning of the article, "reproduction" is the foundation of a ethnic heritage, and we do not need to, and cannot excessively avoid this instinct.
That is to say, within the scope of being reasonable, reasonable and legal, humans still need to reproduce, that is, through mating, they can vent the restlessness caused by their own hormones, or meet their own physiological needs.
Reference:
"Why don't humans have a "estrus period" like other animals"---------CNKI paper materials
"Animals have fixed estrus periods, but why do humans have estrus periods 365 days a year? 》------- Baidu Encyclopedia
"Why are animal mating seasonal, but humans do not? 》---------- Zhihu
"Why does humans have no estrus cycle? 》----------Full-Chengcheng Medical Guide Network (Xuzhou Health)
"When is the "estrus period" of human beings? 》-------------39Health Network
