The zoo has a group of peacocks, a male peacock has been raised for more than two years, only 7 years old, it is the golden age, but the tail feathers are thinner and shorter, except for the tail feathers, other parts of it are developing normally. Tourists buy tickets to see it open, but it has never been opened. The man spoke out.
The peacock's form of marriage is polygamy. The male peacock's jealousy is very strong, and the two male peacocks bump into each other and beat you to death.
The zoo has a peacock garden with a group of green peacocks. Female peacocks do not grow gorgeous tail feathers, and male peacocks open the screen.
The male peacock with the purple-brown crown feathers in the peacock garden has been raised for more than two years, but it has never opened the screen. When it first entered the park, its tail feathers were layered on top of each other, and the length was one meter six, and it grew thinner and shorter after two years, only one meter and four long.
Every autumn is the season of peacock moulting, its old feathers fall off, no new feathers grow, and the tail screen shrinks shorter and shorter. It is only seven years old, at the golden age, and it is impossible to shrink the tail screen due to aging.
In addition to the problem with the tail screen, the feather metabolism in other parts of its body is normal, and its wings are much more developed than when it entered the garden.
When it first entered the garden, it flew from the ground to the trunk and had to flap its wings seventeen times, and now it only needs to fan eight times to climb the trunk.
Tourists buy tickets to enter the peacock garden, none of them are to see how big the peacock has the ability to fly, the only thing they want to see is the peacock opening screen.
A group of tourists stood in front of the cage and swayed the flowers, teasing the male peacocks. The male peacock trembled the purple-brown crown feathers, and there was no other indication. Tourists are stunned.
As if to demonstrate to tourists, to show his determination not to compromise and not to open the screen, the male peacock pulled out a blue plume and threw it on the ground.
Some people say that male peacocks are stingy and pluck a maori world without doing anything, and some say that male peacocks and tourists are against each other.
These explanations are contrary to the characteristics of species and belong to the unfounded subjective speculation of human beings. If you analyze the ecological habits of peacocks, you may not complain that the male peacock refuses to open the screen.
From the perspective of survival, the tail screen of the male peacock has no harm or benefit. The color is too conspicuous and is found by birds of prey; the size is large, which is not conducive to traveling through the jungle; the weight is too heavy, affecting the speed and distance of flight.
A mountain leopard passes by, first to see the male peacock with long tail feathers as the preferred target for capture.
The mountain leopard approached the peacocks in an attempt to gain prey by ambushing and attacking. The peacock could not see the mountain leopard, but sensed that danger was approaching, and retreated deep into the jungle.
The jungle vegetation is lush and thorny, and the female peacock and the little peacock drill through; the male peacock drags the long-tailed screen and is entangled in the vines, it wants to untangle the knots, and the more the chicken dung vine struggles, the more sticky it is, waiting to be eaten by the mountain leopard.
Even if the male peacock is not entangled in the vines and escapes from the tree with other peacocks, the mountain leopard has jumped up from behind, and the female peacock has flown up the tree without dragging mud and water.
And the male peacock because the tail screen is too large and heavy, the body is off the ground, the tail screen is still dragging in the grass, to stay in the air about fifty centimeters above the ground for two or three seconds, the wings are desperately fanned, in order to successfully fly up, the mountain leopard effortlessly pounced on it.
Ten thousand steps back, the male peacock fled to the tree before the mountain leopard arrived, and the peacocks perched on the tree and hid.
Mountain leopards hide in the grass and climb trees after dark in search of prey. Other peacock drills evaded search in the leaf bushes, and the tail screen of the male peacock was exposed outside, which was seen by mountain leopards...
The tail feathers of the male peacock in the ancient era were only one-third the length, quantity and weight of the present.
The longer tail feathers can stop flying by holding the tail feathers open and land vertically, which is beneficial to survival.
Therefore, the male peacocks cherish the tail feathers, in the process of courtship, the male peacocks show off the tail screen, confessing that they are the standard candidates, and the female peacock also cares about whether the partner has a first-class tail screen.
Male peacocks with long and large tail screens are favored by female peacocks, and male peacocks with short and small tail screens are white-eyed by female peacocks, and the longer and larger the tail screen, the more they can get the opportunity to mate and leave their offspring.
Peacocks practice a male and a female, only a few male peacocks are fortunate to be fathers, and most male peacocks are single. This makes the competition for the male peacock tail screen more intense. The tail plume is longer and longer, and the feathers are more gorgeous.
The vision of female peacocks is becoming more and more demanding, looking for male peacocks with outstanding tail screens, and the small male peacocks that are born will also inherit the genetic advantages of the tail screen to become the best, making the male peacock tail screen competition more and more intense.
The male peacock discovers that the tail screen has evolved to an unrealistic degree, loses the function of the tail feather, and is hunted by the bird of prey.
Male peacocks, out of safety concerns, want to stop tail screen competition. It is easy to change traditional customs, and it requires the consensus of all members, otherwise they will be eliminated.
The increasingly long tail screen poses a threat to life, and if not, peacocks lose the opportunity to reproduce.
Competition is beneficial. Species evolve in competition, and nothing is absolute, and when competition cannot be controlled and regulated by reason, it will destroy species.
A strong national defense is a guarantee of security, but the endless arms race exhausts national strength, the economy collapses, and the country is in trouble.
Another example is that bustling metropolises are a sign of national strength, but if the city continues to develop without restriction, social phenomena such as population expansion and housing congestion will flood, which will bring troubles to residents.
Looking at the male peacock with the purple-brown crown feathers, it is not difficult to understand why it refuses to open the screen. With no competitors around, it doesn't have to put itself in a dilemma. It makes the tail feathers shorter and smaller, less burdensome, and flies lighter, why not?
The solution to the problem is very simple, the introduction of a new male peacock, the introduction of competition mechanism.
The male peacock with purple-brown crown feathers is afraid that the female peacock will be taken away by the new male peacock, carefully care for the tail screen, comb and open the screen diligently, and the tail screen is becoming more and more dense.
The story is adapted from "Peacock Open Screen Pros and Cons", this article and pictures come from the Network, the copyright belongs to the original author, if there is infringement, please contact me in time to delete, thank you!
Ring ring wants to say,
Male peacocks have advantages and disadvantages in opening the screen, and the advantage is that male peacocks can survive the fittest and give birth to small peacocks with better genes. The disadvantage is that it is easy to be found by the beast and lose its life.
There are two sides to everything, there is no absolute good or bad, from one point of view it is bad, but from another point of view it may be a good thing.
Zhu Xi said: "The middle one is impartial, and there is no fault in the name of inadequacy." Mediocre, usually also. ”
In the middle is not to be extreme, not to go to extremes.
#I'm going to make headlines##野生动物 #
