Who knows the historical development of wolves?? As the title suggests, thank you

Summary. Hello dear, the wolf was first about 5 million years ago in the middle of the last century, the wolf originated in the New World, and differentiated and developed in the middle of the Pleistocene 1.5 million years ago. Wolves originated on Earth 5 million years ago, and both dogs and wolves have 39 pairs of chromosomes, or 78 chromosomes.

Black dorsal and lateral striated jackal have one less pair of chromosomes. In the long process of evolution, many animals with strong strength have become extinct, but wolves have survived because they have survived in groups and hunted in groups, forming a huge society. Perhaps, as Darwin said:

Natural selection, survival of the fittest".

Hello dear, the wolf was first about 5 million years ago in the middle of the new century in the Shangqing Dynasty, the wolf originated in the New World, and differentiated and developed in the middle of the Pleistocene 1.5 million years ago. Wolves originated on Earth 5 million years ago, and both dogs and wolves have 39 pairs of chromosomes, or 78 chromosomes. Black dorsal and lateral striated jackal have one less pair of chromosomes.

In the long process of evolution, many animals with strong strength have become extinct, but wolves have survived because they have survived in groups and hunted in groups, forming a huge society. Perhaps, as Charles Darwin said, "The survival of the fittest is based on the competition between the world."

The wolf is the wild Changqingji ancestor of the domestic dog, and is a terrestrial mammal widely distributed in the wide round shirt, occupying Eurasia, North America and even North Africa. Previous studies have shown that wolves have complex phylogeny and population history, and not only have a population structure influenced by geography and ecological environment, but also have obvious long-term gene exchange and population mixing with domestic dogs, coyotes and even jackals.

The wolf (scientific name: canis lupus), also known as the gray wolf, is a mammalian and canidae, which is biologically the same species as dogs and is the largest species of living canids. Once the most widespread mammal on Earth, including North America and Eurasia, the wolf species is now extinct in much of Western Europe, Mexico and the United States.

Wolves are social predators, and wolf packs are formed in the form of a nuclear family, consisting of a spouse, their children, and sometimes adopted juvenile wolf cubs. Wolves belong to the typical upper predators of the food chain.

There are 46 subspecies of wolves, with a medium-sized, well-proportioned body shape, slender limbs, and toe-walking behavior, which is conducive to fast running. The head and palate are pointed, the face is elongated, the nose is prominent, the ears are pointed and erect, the sense of smell is sensitive, and the sense of hearing is developed.

Wolves are carnivores, mainly feeding on deer, antelopes, rabbits, insects, mice, etc., and can withstand hunger. Wolves are predators, and wolf packs are formed in the form of a nuclear family, including a couple and their children, and sometimes adopted juvenile wolf cubs. Wolves belong to the typical food chain secondary predators.

Usually in groups, wolves were killed by humans by the end of the 20th century because they prey on sheep and other domestic animals, and some subspecies such as the Japanese wolf, the Newfoundland wolf, the Florida black wolf, and the Kenai Mountain wolf have become extinct. The exact number of the present subspecies is still uncertain.

The wolf is a species of the genus Canidae of the order Carnivora. The appearance is similar to that of a wolfdog, but the snout is slightly pointed and long, the mouth is slightly wider, and the ears are erect and not curved. tail straight drooping; hair-brownish-gray; Wolves in northern China 1 - m.

It is found in Eurasia and North America. The breath has a wide range and strong adaptability, and wolves live in all mountains, forest areas, grasslands, deserts, and even tundras. In China, except for Taiwan and Hainan, all provinces and regions produce production.

The wolf is resistant to heat and is not afraid of the cold. Nocturnal activities. Keen sense of smell and good hearing.

Cruel and alert, good at running, often using desperate pursuit methods to obtain prey. Omnivorous, mainly feeds on deer, antelopes, rabbits, etc., and sometimes eats insects, wild fruits, pigs, sheep, etc. Able to endure hunger.

From January to February every year, the mating singer sings a long and mournful howl to attract the opposite sex. The gestation period is about 2 months, and each birth is 4 7 litters. Male and female cohabit during breeding.

Co-parenting of pups.

Wolves originated in the New World, about five million years ago. Before the dawn of man, wolves were the most widespread wild animals in the world. It is widely distributed in Europe, Asia and the Americas.

There are many types of wolves, and they are innumerable. Wolves eat a lot of food, can eat more than a dozen kilograms of meat at a time, and occasionally eat grass or berries in summer.

Wolves live together and hunt in groups. The wolf's greatest skill is to use the role of the pack to hunt animals larger than them. There is a certain hierarchy in each wolf pack, and each member is clear about his identity.

Therefore between each other, there is very little hatred and acts of fighting.

Wolves are extremely social species. The number of wolves in a pack is about 5 to 12 individuals. Wild wolves can generally live for 12-16 years, and some wolves in captivity can live up to about 20 years.

The wolf runs extremely fast, up to about 55 kilometers per hour, and is quite intelligent, and can communicate with smells and calls.

Adult wolf mortality is mostly due to hunting and poaching, car accidents and trauma. In addition, wolves are infected by domestic dogs, such as rabies, parvovirus and canine distemper. Hope to adopt.

Summary. Knowledge expansion: Wolf is a short story created by Pu Songling in the Qing Dynasty.

This work depicts the image of a greedy, **, cunning wolf. It teaches us that we must not compromise with the wicked like wolves, but must fight bravely and skillfully like butchers, and only in this way can we achieve victory. "Liao Zhai Zhi Wei", referred to as Liao Zhai, commonly known as the ghost fox biography, is the work of Pu Songling, a famous ** family in the Qing Dynasty.

Liaozhai is the name of the study; Chronicles, records; Strange, strange story. This book has a total of 491 short stories, with a very wide range of topics and extremely rich content. Liao Zhai Zhiwei's artistic achievements are very high, and it has successfully shaped many artistic models.

The characters are vivid and vivid, the storyline is twisty and bizarre, the structure and layout are rigorous and ingenious, the writing is concise, and the descriptions are delicate, which can be called the pinnacle of Chinese classical short stories.

2.What are the reasons for these changes in Wolf?

Dear, I'm happy to answer for you what is the reason for these changes in "Wolf": the butcher of the wolf goes from being afraid of the wolf, accommodating and retreating, to being forced to defend against the wolf, and then rising up to the wolf. Because I was persecuted by wolves, I rose up to resist. <>

*Knowledge Expansion:**

Wolf**This is a short story created by Pu Songling in the Qing Dynasty, depicting the image of a greedy, **, and cunning wolf. It teaches us that we must not compromise with the wicked like wolves, but must fight bravely and skillfully like butchers, and only in this way can we achieve victory.

Strange Tales of Liao Zhai" ** referred to as "Liao Zhai", commonly known as "The Legend of the Ghost Fox". This is the work of Pu Songling, a famous ** family in the Qing Dynasty. "Liao Zhai" is the name of his study; "Zhi" means to record; "Strange" refers to the bizarre and grotesque story in it.

This book has a total of 491 short stories, with a wide range of topics and rich content. His artistic achievements are very high, and he has successfully shaped many artistic models. The characters are vivid and vivid, the storyline is twisty and bizarre, the structure and layout are rigorous and ingenious, the writing is concise, and the descriptions are delicate, which can be called the pinnacle of Chinese classical short stories.

Heart to heart to heart**