Why do chickens spread all over the world and become the most numerous animals in the world?

It's an interesting question, because I've never thought about it before, and I used to think that chickens are just a kind of food that we eat, or rather an animal. So many people will wonder why chickens can become one of the most abundant animals in the world? Here are a few points to answer.

First, the species of chicken.

If the human species is a very successful creature on the earth, then the chicken species is also very successful, because human beings have about 7 billion people on the earth, but many people do not realize that the number of chickens on the earth is as high as more than 20 billion, which is a very terrible number, although human beings eat tens of billions of chickens every year, but there will still be tens of billions of chickens, is it not a terrible number, although it has been eaten, but it has been reproduced. <>

Second, about the number of chickens.

We mentioned above that the number of chickens is very large, so why are there so many chickens? The direct reason is because of human breeding. This number has reached a very terrifying point, so to speak, the number of chickens is greater than the number of all birds combined.

So if from the theory of evolution.

from the perspective of this species, it is very successful. Because the ultimate purpose of a species' evolution is to survive and reproduce, the greater the number of species, the more successful it is. <>

3. About the history of chickens.

Many of us know that the history of chickens is very long, from the earliest days of dinosaurs.

The species of chicken has already appeared, and many people often say that chickens are living fossils from the age of dinosaurs.

So since the development of modern human civilization, the species of chicken has also been riding the express train of human beings, and it has developed better and better. Although chickens can't fly, and look stupid and stupid, they are easy to be captured, and chickens have been raised by humans for a long time, but it is precisely because of these easy-to-catch characteristics that people are willing to raise it, and this species has been able to develop and reproduce so well. <>

That's because chickens are particularly reproductive, and there are many people who like to eat chicken, and chicken is easier to cook, so chickens have become the most abundant animals in the world.

Because chickens are very fertile and humans help them reproduce quickly, chickens can be found all over the world and become the most numerous animals in the world.

In the animal kingdom there are two kinds, male and female. In humans, it refers to a certain category of women. And, of course, toy chickens.

The so-called "chicken" is the larger species of the animal kingdom, chordates, vertebrate subphylum, sauriformes, bird subclasses, and chickens, collectively referred to as "chickens" (the smaller ones are called "quails)", including 2 suborders, 7 families, and 276 species. According to the "Field Handbook of Chinese Birds", there are 63 species in 1 family in China, and the domestic chickens we usually eat are pheasants, protopheas, red junglechicken subgenera, and domestic chicken species.

The number of chickens. It's about a few billion of humans.

Pheasant, turkey, rooster, hen, black pheasant, snowcock, long-necked pheasant, pheasant. That's all I know.

According to a series of data, the world's largest number of animals can be said to be krill. The reason why there are traces of krill in many places is that most of the earth is ocean, and many water currents are connected, and the reproduction rate of krill is very fast, so krill is basically all over the world, and there are traces of krill in various regions.

The earth we live on is very wonderful, there are many different kinds of creatures distributed on the earth, and these creatures are also closely related to our lives. The earth can be said to be a very small planet in the universe, but for us human beings, the earth is very large, very vast, so that the earth has not been completely studied until now. And there are many creatures living on the earth, and we humans are just one of them.

There are many landmasses and oceans on the earth, and the area of the ocean is very large, so the number of marine life is also very impressive. Some people will ask so many creatures, which kind of species is the most, after a series of scientific research found that the world's most abundant creatures are krill, this answer is a bit beyond imagination. Many people think that the number of ants and mosquitoes is also very large, after all, they can be found in almost all areas, and ants can be said to be the most abundant creatures on land.

The ocean is more extensive than the land, and the reproduction of krill is very fast, although krill looks small, but generally in groups, belonging to the food chain in the ocean. Many creatures in the ocean depend on krill for food, such as some fish, and whales are also loyal lovers of krill. A whale can swallow tons of krill in one bite, but even if krill is eaten by many marine creatures, it is not extinct, it can be seen that the number is very large, and the rate of reproduction is also very fast.

Ant. Ants have been around since the Jurassic century, and they can be found anywhere in the world, but their size varies depending on the region.

In terms of a single species, the most abundant animal in the world is Antarctic krill. With a body length of about 4 centimeters and a weight of about 1 gram, krill is a huge number, currently numbering about 450 trillion individuals, and the total biomass is more than any other known animal. As a result, Antarctic krill is the most abundant animal compared to other animals in the ocean or on land.

Caterpillar. The caterpillar is a creature that can be found all over the world, and it is full of life everywhere it goes.

The largest number of animals in the world is krill, because the world's largest oceans are the most abundant, and krill are very reproductive.

Chickens are the most common bird species raised by humans. Domestic chickens are derived from wild raw chickens, which have been domesticated for at least about 4,000 years, but it was not until around 1800 that chicken and eggs became mass-produced commodities. The types of chickens are turkey, black chicken, pheasant, etc.

So, pheasants, turkeys, etc., are absolutely not right. You can look up animals that belong to the same family as chickens.

For example: Congo peacock, blue peacock, green peacock, crested luan, green luan, spitted chicken.

Eye-spotted spitting chicken, sickle-winged chicken, fir sickle-winged chicken, blue sickle-winged chicken, willow ptarmigan, rock ptarmigan.

White-tailed ptarmigan Common grouse Black-billed grouse Black grouse Black grouse Spotted peacock pheasant Caucasian black grouse.

Flower-tailed hazel grouse, spotted tail hazel grouse, shawl hazel grouse, wormwood hazel grouse, sharp-tailed hazel grouse, prairie hazel grouse.

Prairie hazel grouse, whiskered quail, long-tailed quail, yellow-capped quail, mountain quail, scaly quail.

Spotted quail, mountain tooth quail, black-throated quail, crested quail, cloud-spotted woodquail, Venezuelan woodquail.

White-throated quail, striped-cheeked quail, eye-spotted quail, spotted quail, singing quail, painted quail.

Spotted quail, tea-faced quail, snowquail, pheasant, Sichuan pheasant, Caspian snowcock.

Tibetan snowcock, Altai snowcock, large stone pheasant, European stone pheasant, stone pheasant, sand quail.

Black partridge, fancy partridge, Chinese Partridge, Grey Partridge, Swamp Partridge, Chestnut Ridge, White-throated Partridge, Chestnut-throated Partridge, Wood Partridge, Crested Partridge, Ring-necked Partridge, Finn Partridge, Red-winged Partridge, Gray-winged Partridge, Highland Partridge, Hsieh's Partridge, Orange-winged Partridge, Grey Mountain Partridge, Spotted-winged Partridge, Highland Partridge, Long, Black Quail, Quail, Red-breasted Mountain Partridge, White-fronted Mountain Partridge, Red-throated Mountain Partridge, White-cheeked Mountain Partridge, Taiwan Mountain Partridge, Hainan Mountain Partridge, Stone Quail, Brown-breasted Bamboo Pheasant, Grey-breasted Bamboo Pheasant, Red Chicken Quail, Blood Pheasant, Black-headed Horned Pheasant, Red-bellied Horned Pheasant, Spoon Pheasant, Green-tailed Rainbow Pheasant, Gray Jungle Pheasant, White Pheasant, Flycatcher, Sumatran Pheasant, White Horse Pheasant, Tibetan Horse Pheasant, Blue Horse Pheasant, Colored Pheasant, Golden Pheasant, Copper-tailed Peacock Pheasant, Mountain Peacock Pheasant.

About our daily life, the intake of food is still very rich and diverse, there are vegetables and meat, of which meat mainly comes from animals, these animals include pigs, chickens, ducks, fish, geese, cattle and sheep, etc., which is also one of the main proteins in daily life, so these animals provide very important help to our human life. So about these animals, in fact, the most animal in the world is actually chickens, not us humans, why can the number of chickens be so common, and the number can be so large? The reasons for the needs of humans and the problems of the chickens themselves are probably as follows.

First, human beings are now more advanced in the technological transformation of chickens. First of all, the first point is that the science and technology of human beings are very advanced, and we can use human factors to intervene in the reproduction of a species of organisms for a technology in bioengineering. So now we are widely used in many organisms, such as artificial insemination, and artificial breeding of fruit trees and non-GMO soybeans, these are an application of human beings in bioengineering, so the machine can also make artificial insemination, and the growth rate of chickens will be very fast.

Second, human demand for eggs. In addition, the human demand for eggs is also the main reason. Because eggs can meet the protein of human beings for a day, as long as you eat about two to three eggs a day, the daily protein intake of an ordinary person can be satisfied, and each hen can lay 2 or 3 eggs a day, so a large area of hen breeding, which is why chickens can be so common now, and the number of animals in the world.

Third, the growth rate of chickens is also very fast. The last point is that the production speed of chickens is also very fast, and now human science and technology can make chickens change from chicks to hens in about 40 days, and then meet the needs of laying eggs, and each egg can be laid for about a year, and after about a year, it can meet the needs of broilers.

The use of chicken is large, there is a market where there is a demand, and the chicken is easy to raise, and the risk of raising is small. There are a variety of reasons that lead to a high number of chickens.

There are 20 billion chickens in the world. It is so common because it is easy to raise, has strong reproductive ability, and chickens are omnivores and can eat more.

The human demand for eggs is also the main reason, and now human science and technology can make chickens turn from chicks to hens in about 40 days, and then meet the needs of laying eggs. The human factor is used to reproduce species, so there will be more of them.

Because chickens are so fertile and can lay eggs every day, and with the assistance of humans, chickens can be so common.