Who are the ancestors of the dog, who are the ancestors of the dog

The ancestor of the dog is the ancestor of the wolf, although after more than 10,000 years of breeding and domestication, but in its genes, there are still many primitive wolf habits, and live in groups. Sociality is one of them. Wolves are social animals, and they are usually seven.

Eight wolves hunt for food in a group of hunters, and each wolf has a different class status in the group; Zoologists are accustomed to calling the leader of the wolf pack the alfa wolf, and the responsibility of the group, including the distribution of food, the settlement of disputes, and even the reproduction of offspring, depends on it; The rest of the wolves are also content with their position in the group and obey the leadership of the alpha wolf, which is the wolf society. And what about dogs? Although the dogs have evolved over a long period of time, they have retained the nature of these wolves, but the object of living in groups has expanded from their own kind to those who keep them.

At home, the dog treats each family member as part of the group, lives with us, plays with us, hunts (goes out for a walk).During the time we have lived with humans, the sensitive dog has unconsciously made it home for us.

The ancestor of the dog is the wolf of East Asia.

After analyzing the DNA of hundreds of dogs from Europe, Asia, Africa and North America, scientists found that all the dogs in the world had similar genetic sequences, so they concluded that all the world's domestic dogs evolved from East Asian wolves about 10,000 years ago. The ancestors of these dogs and the earliest settlers of the Americas crossed Asia and Europe together through the Bering Strait to reach the Americas.

Scientists in Sweden and China studied the genes of 654 dogs and found that East Asian dogs have a strong genetic diversity, suggesting that East Asians were the first to tame wolves into dogs.

The findings, published in the latest journal Science, led the study, Peter Savoreen of the Royal Swedish Institute of Technology, said that humans initially speculated that the dog's ancestors came from the Middle East based on little evidence, because some archaeological finds in the Middle East prove that many animals were tamed in the region.

Researchers from the United States, Latin America and Sweden have found that dogs with genes similar to those of East Asian wolves appeared in the Americas before European settlers arrived in the 15th century. This suggests that the first settlers who arrived in the Americas through the Bering Strait 10,000 years ago came to the Americas with tamed dogs.

Karls Vera, a researcher at Opsala University in the United States, said the presence of dogs could explain why settlers on the American continent dispersed relatively quickly.

The two studies disagree on when dogs were domesticated from wolves, with the dog's mandible, originally found in Germany about 10,000 years old, and a team of Swedish and Chinese scientists arguing that DNA analysis and archaeological findings combined to suggest that dogs were domesticated 10,000 years ago.

Huskies are the history of their origins.

Ancestor of dogs: Dogs (Latin canislupusfamiliaris) belong to the phylum Chordates, subphylum Vertebrates, Mammalia, Subclass Euzos, Carnivores, Schizopodae, Canidae. Also known in Chinese"Dogs"Dogs belong to the order Carnivorous and are found all over the world.

Dogs are called together with horses, cows, sheep, pigs, and chickens"Six animals"。Some scientists believe that dogs were domesticated from gray wolves by early humans, and that they were domesticated 40,000 years ago and developed to this day. called"Man's most faithful friend", which is now the pet with the highest breeding rate.

Its lifespan is about more than ten years.

Now, there are two types of dogs: domestic dogs (raised dogs) and wild dogs, each with a different evolutionary process.

The evolution of domestic dogs: first wild wolves, then wolves trained by humans, and slowly domestic dogs.

The process of proximity of wild wolves: some of the ancestors (wild wolves) that survived in the wild gradually became wild dogs.

In fact, the ancestors of dogs are former wolves.

The predecessor of the dog was originally a wolf, and after domestication, it reduced its wildness in order to get along with humans. But once attacked, its original wildness is revealed.

It is the wolf that is slowly worn out in the wild nature of the long years after being kept in captivity, and finally becomes a dog with a docile personality.

It's part of the wolf, part of it is domesticated as a dog, and part of it is still a wolf that is not kept in captivity.

The ancestor of the dog was the wolf. Dogs were domesticated from wolves. As early as the hunter-gatherer era, dogs were domesticated as hunting assistants.

Therefore, dogs are considered to be the earliest domesticated domestic animals of humans. Dog bones have been found in Cishan in Wu'an, Hebei, Pei Ligang, Xinzheng, Henan, and Hemudu, Yuyao, Zhejiang.

No one knows exactly when the first human-wolf interaction took place.

Some scientists believe that it may have been 50,000 years ago, because it would have taken at least that long for wild wolves to develop the genetic differences they have today. The biological origin of dogs can be traced back to tens of millions of years ago, and the history of dog domestication is about 15,000 years ago in the Mesolithic Age, and some scientists even argue from the perspective of genetics that dogs may have been domesticated by humans as early as 100,000 years ago.

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The ancestor of the dog was the wolf.

According to the natural taxonomic criteria established by Linnaeus, the gray wolf belongs to the genus Canidae of the carnivorous order, and the domestic dog (dog in the narrow sense) is a subspecies of the gray wolf population. In the past, scientists have confirmed that wolves are the ancestors of domestic dogs through genetic research, but there has been controversy about which subspecies of wolves became the ancestors of domestic dogs: one hypothesis is that domestic dogs originated in wolf packs in Europe and Western Asia; Another hypothesis is that the East Asian wolf is the ancestor of the domestic dog.

With the development of DNA technology, relevant personnel have found that the genetic variation of domestic dogs in East Asia is more than that of domestic dogs in other regions by studying the mitochondrial DNA in domestic dogs in different regions, so it is confirmed from biogenetics that more than 400 domestic dogs in the world have originated in East Asia, that is, they are all descendants of "East Asian wolves".

The study also confirmed that these East Asian wolves were first domesticated by the natives about 10,000 years ago, and then gradually spread throughout the Old World (Asia, Africa, Europe and Oceania), and finally reached South America through the Bering land bridge that still existed at that time.

As for the question of "how the wild wolf turned into a dog that obeys the words of humans", some researchers have also speculated based on archaeological discoveries at the time, that about 10,000 years ago, due to changes in the environment and the expansion of primitive human living areas, the territory of wolves gradually shrunk, and there were fewer and fewer prey. Driven by hunger, some wolves ventured into the vicinity of human settlements to try to find some food to satisfy their hunger, and were lucky enough to get food fed by humans. Since then, these wolves have become closer and closer to human habitats, and their relationship with humans has become more and more intimate.

After discovering that these wolves were not aggressive, but actively approached them, humans also began to try to use their sense of smell to assist in hunting.

There is an interdependence between wolves approaching humans in order to get food, and humans using wolves in search of prey. Over time, this interdependence has been passed down from generation to generation and has gradually taken shape into what it is today.

The ancestor of the dog was in the Paleocene epoch, a bear-like dog with a long tail called amphicyon.

It lived 30 million 3 million years ago and became extinct during the Third Eocene.

In the Pliocene, it was a small-sized microdont and a canine called pseudocynodictis, which lived in North America.

In the fourth century was the tomarctus, which lived 15 million to 10 million years ago and is the ancestor of all canines today.

There is also a possibility that dogs were domesticated from wolves.

However, the history of domestication is only a thousand years, and it was in Mongolia and North America that the first domestication of wolves appeared.

In fact, the ancestor of the dog was the wolf. First of all, there are many breeds of dogs, and they vary greatly in size, color, and how curly their coat is. For this reason.

At first, it was thought that they evolved from different wild canids. Thus, in 1758, the dog was classified as a separate canine species.

Secondly, the conclusion that the ancestor of the dog was a wolf was later with the deepening of research and the progress of science and technology. With the help of genetic technology, biologists have discovered that gray wolves are closely related to dogs. And until now, they can still reproduce together.

Finally, while some breeds of dogs are very similar to wolves, dogs have been completely domesticated by humans. Its body structure and body language are also very different from those of wolves. By measuring their skulls, researchers found that most dogs had wider corners of their eyes than wolves.

The tail of a wolf is vertically downward, and the tail of a dog is curled upward. And the tail is the weak point of the animal, and it is the position that they are most likely to miss when they encounter danger.