Talking about creatures in nature, apart from saying how powerful their survival strategies and how amazing their predation skills are, all that remains is the matter of the end. After all, these two things are the main tasks for the survival of all animals in nature.
In nature, vertebrates have evolved more advanced, and most of them reproduce by sexual reproduction, while a large part of invertebrates still retains the most primitive breeding method: asexual reproduction.
Asexual reproduction without the participation of both females, of course, there is no way to talk about the length of mating time, and in sexual reproduction, the length of intercourse time of all organisms is different;
Some animals are in the process of reading seconds, fleeting, like "Flash". And some animals have a long and long process of tailing, dragging and dragging, we can call them "pit men".
Nature's "Pit Man"
The famous "pit hunters" in nature are no longer a minority, such as human friends dogs, horse island foxes living in Madagascar, and dark pocket ferrets living in Australia;
Dogs do not need to introduce much, we have seen too much, they have evolved a very peculiar way of locking in nature, male and female back to back, the time can reach more than half an hour, during this period if they are separated by violent means, it will bring pain and psychological shadow to the male.
The Falkland fox, which looks a lot like a fox, is not a canine, but a civet cat. It is a small carnivorous mammal, no more than 70 cm long, and it often feeds on some small animals in its nocturnal activities, as well as birds, insects and so on.
Don't look at them small, the temperament is very fierce, after all, people are pure carnivorous, in the annual breeding period from August to September, male and female will stay together to guard the same territory, can be regarded as a dew couple, the next breeding period will be replaced.
Their mating strategies are also ink and pits, and the time can be up to 8 hours. It is the most placental mammal.
There are two kinds of dark pocket shrews, one lives in the australian outback, one lives in Tasmania, they belong to placental-free mammals, which is what we often call marsupial mammals, which are basically these creatures with childbags in Australia;
What kangaroos, thylacines, possums, wombats, possums, etc., make each of your bags interesting to live in the Australian continent.
Marsupial mammals shared their ancestors with those of us who did not have bags, and after differentiation, continental drift they were preserved in Australia and some parts of the Americas;
Marsupials on other continents have been hunted down by marsupial mammals over a long history. Because our mammals without bags are more advanced and fierce, gradually replacing them.
Now you can go to Australia to see, where the marsupials are basically milder, including carnivores, in general, it is stupid, cute rabbits can turn Australia's ecology upside down, no carnivores can restrain rabbits.
However, marsupials are quite crazy in breeding, basically occupying pit men, of which the dark pocket shrew is the most typical representative.
The breeding period of the males of this creature will generally last for 2 to 3 weeks in the summer, and the androgens in the males will soar before the breeding period, like a demon, frantically looking for females to breed offspring.
During this period they give up eating, give up sleeping, and it can be said that they give up everything and die to love. The duration of a single session can reach 14 hours, which is the highest in the mammalian world.
This is not the end, as long as the male has a breath, it will look for other females to continue to reproduce until they die of gas, and every summer, those adult males will die, and the number of dark pocket shrews will drop by half.
The male does this because he exerts altruistic behavior into a mechanism that frees up more space and survival resources for the female and the cubs to be born through their own death.
Biologists are amazed at the way they control their populations on their own, but they also have headaches.
In the past, males did not have much impact on the overall population of the dark bag shrew, and the birth of offspring will quickly replenish the number, but today with the influence of environmental changes, pollution, habitat destruction and other factors, coupled with their death-loving habits, the population of the dark bag shrew has entered an endangered situation.
Speaking of nature's "Pit Man", let's talk about "The Flash"!
The number of "Flash" in nature is very large, those in the African savannah are basically "Flash", what lions, tigers, giraffes, elephants and the like, they are all a few seconds of time, more than a few minutes, there is nothing to say, this is the most natural state.
Why are animals born with time differences?
To know that the length of time, the short time is not arbitrarily selected by the animals, this is their own unique reproductive strategy, is written into the genes of the characteristics, so it is still advised to humans, do not go against the sky. (Why mention humans, as will be said later.) ）
Long time has the advantage of long time, can improve the success rate of a single time, can occupy the pit, and does not let other competitors occupy. It's very good for breeding offspring.
But the disadvantage is that it is very dangerous in the wild, especially for solitary creatures, such a long time, coupled with reduced distraction alertness, it is easy to be detected by celestial bodies.
Therefore, the living environment of the "pit man" has a characteristic, relatively safe, unlike the African grassland, which is full of killing all the time, and the pit man also has a characteristic of living in groups.
The advantage of the short time of "The Flash" is that it is flexible, mobile, and can be done at any time, and it can be done between talk and laughter. Although the success rate of a single time is poor, as long as the number of times is large, it is completely fine.
The environment in which they live is characterized by being very dangerous, and even the lions living in groups are "The Flash" on the prairie.
What is the difference between humans and them?
You may think that human beings live in groups, the environment in which they live is absolutely safe, and that humans are also "pit men", but the truth is that humans are typical "Flash".
Including all the great apes, they are.
A paper published in the Proceedings of the Royal Society B says that humans belong to a relatively short-lived class of creatures in nature, averaging less than 3 minutes.
Due to the fact that humans are "The Flash", and the emergence and development of our monogamy, it has also led to the loss of human reproductive bones in evolution.
So why are humans "flashmen"?
The reason is simple, 100,000 years ago, human beings came out of the African continent, human beings have only lived a stable life of tens of thousands of years, but human beings have evolved in Africa for millions of years, and we have been engraved with a lightning sign on our genes.
A few tens of thousands of years of stable days cannot change anything. So humans have to accept the fact that they are "The Flash" and don't force themselves.