The animal we are familiar with the pig, what animal is its ancestor?

The ancestors of pigs are wild boars, which date back 40 million years, and there is evidence that domestic pigs may have come from Europe and Asia. Fossils that have been found show wild boar-like animals roaming forests and swamps. Wild boars were the first to be domesticated in China, and the history of pig farming in China can be traced back to the early and middle Neolithic periods.

Many species live on Earth, but over time, many species are eliminated, not because of genetic forces. Just because it is not suitable for living in such an environment, just like how powerful the dinosaurs were, they could not resist the attacks of nature. Instead of being a poultry and pig that could survive and evolve in ancient times, the ancient ancestor of the wild boar was the giant pig, a beast that began to include teeth, the ancient giant pig and the giant pig multi-branched, they are considered the ancestors of all modern pig species, although it is only meters long, it has a very fierce temperament and likes to eat meat the most, it has large tusks that crush the bones of its prey, and because of its hooves, most of the time it does not eat, but collides and gnaws like a modern wild boar.

Almost all ancient giant pigs were born between the Eocene and Oligocene epochs, between 35 million and 28.4 million years ago. Fossils have been found throughout Eurasia and North America, and they are generally meters long, weighing about 1 ton, and are relatively large mammals of the time, and are considered to be cousins or ancestors of modern pigs. They have a lot in common.

The most typical of the ancient giant boars is the tooth beast, after all, they are the ancestors of the pig, so they have a lot of growth on their faces, just like the modern wild boars, because they have found many battle scars in their fossilized bones, the largest wounds can even reach 2 cm deep, they are known as one of the six overlords of the prehistoric earth, because they often grab the head of their opponents with their powerful jaws for victory.

According to the oracle bones unearthed in Yinxu, pigs were already raised in the fence during the Shang and Zhou dynasties. Since then, with the development of production, the requirements to distinguish between different breeding pigs have gradually formed. A great innovation in pig breeding technology in the Shang and Zhou dynasties was the invention of castration technology.

Its ancestor was a wild boar, and a long time ago humans tamed wild boars and began to raise wild boars, and then wild boars slowly became the pigs they are today.

Zhou's ancestors were giant pig creatures in ancient times, which looked more similar to pigs, but were much larger.

We are familiar with pigs, their ancestors are a kind of reptile in the world, which has existed thousands of years ago in antiquity said to be the last developed animal.

Our pigs were domesticated from wild boars. The wild boar is his ancestor.

If you had to go back further, it would be the Completetooth Beast.

Tooth Beast**.

Mammalian artiodactyl pigs are omnivorous meat animals. Domestic pigs were domesticated from wild boars. It has the characteristics of strong fecundity, fast growth, high feed utilization rate and wide eating habits.

Pork is delicate and delicious, rich in nutrition, and is one of the main meat foods of human beings. In addition to fresh meat for consumption, it is also suitable for processing into ham, cured meat, sausages and meat floss. Pig skins, bristles and casings can be used as industrial raw materials.

Pig blood and pig bones can be made into blood meal and bone meal respectively for feed. The internal organs and glands of pigs can be used to make a variety of medical medicines. Pigs themselves are also good laboratory animals.

Chinese farmers have always had the habit of raising pigs to accumulate fertilizer and fertilize their fields with pig manure, and pig raising has become an important part of China's agricultural production. The domestication of pigs in China was not concentrated in a single region, but was the result of the domestication of local wild boars by local residents.

The body of the domestic pig is plump, the limbs are short, the nose is short and concave or straight, the ears are drooping or erect, the coat is thick, and there are black, white, brown, red, black and white flowers and other colors. Pigs have a flexible snout and have the instinct to feed on underground grass roots, tubers and other food with the tip of the nose. The foot has four toes, but only the first toe touches the ground.

Adult pigs have 44 teeth, the fangs are short and curved at the tips, and the incisors, canines, and molars are well developed. The sense of sight and touch is dull, while the sense of hearing and smell is sharp. Omnivorous, can use a variety of animal and plant feeds.

However, it is selective and less able to digest crude fiber than herbivores. The sweat gland function is underdeveloped, and the subcutaneous fat layer is thick, which makes it difficult to dissipate heat at high temperatures, so the heat resistance is poor. In a hot environment, he likes to roll in the pond to help dissipate heat.

Loves cleanliness and does not defecate in places where they eat and sleep. Sexual maturity is early, the gestation period is short, and the litter size is large, so the generation interval is short, the turnover is fast, and the proliferation is easy. Grows rapidly.

The lifespan is about 20 years.

There is a lack of uniform classification criteria for the types of pigs. It is usually classified as fatty, cured, fresh or lean according to the body structure and main purpose. There are more than 300 breeds of pigs worldwide.

Among them, China accounts for about 1 3 and is the country with the most abundant pig resources in the world. China's local pig breeds can be divided into six types: North China type, South China type, Central China type, Jianghai type, Southwest type and high prototype according to their quality, distribution, physique, shape and production performance.

Pig (scientific name: Suscrofa domestica), mammalian class, artiodactyl, swine family, omnivore. Pigs generally refer to domestic animals.

Pigs have short fat limbs, tame sex, strong adaptability, easy to raise, and fast reproduction. Pigs can be bred 5-12 months after birth, and the gestation period is about 4 months. The average lifespan of a pig is 20 years.

A kind of domestic fat animal for food, very cute when you are young, very scary to grow up, big nose, big ears, eat more, increase fast, in fact, the pig has a neck, but a little shorter (I don't know if there is anyone like me, think that the pig is without a neck), it seems to always be thought to be very stupid, this is a misunderstanding, the pig is actually a very smart animal, seemingly honest, in fact, a little temper. Now there is a full-time pet piglet, which is really cute, but I still can't muster up the courage to raise one.

Pigs: omnivorous mammals. The body is fat, the limbs are short, the nose and muzzle are long, the meat is edible, the skin can be tanned, the body fat and the limbs are short, the sex is tame, the adaptability is strong, it is easy to raise, the reproduction is fast, and there are black, white, red or black and white flowers and other colors.

Breeding can be done from 5 to 12 months after birth, and the gestation period is about 4 months. The average life expectancy is 20 years. It is one of the five animals.

In the zodiac, the pig is at the bottom of the list and is called Hai. There are many allusions and customs about pigs. Pig world:

Animalia phylum: Chordates Subphylum: Vertebrate subphylum:

Mammals: Artiodactylaceae: Porcine genus:

Pig Genus Species: Pig Breed Pig is also known as "Yin Zhong", "Tang An", "Black Face Lang" and "Black Master". In ancient times, it was called pig, also known as 彘, pig, also known as Gangguan, and was also known as "Shu Fatman" in Gansu dialect.

The government and the opposition said that the people of Hongzhou in the Tang Dynasty raised pigs to get rich, and called pigs "Tang An". The Tang Dynasty's "Yunxian Miscellaneous Records" quoted "Chengping Old Compilation": "The black-faced lang is called a pig."

In the land of China, as early as the period of matrilineal clan communes, pigs, dogs and other domestic animals began to be raised. The pottery pig unearthed from the Neolithic Cultural Site of Hemudu in Yuyao, Zhejiang Province is very similar to the shape of the current domestic pig, indicating that the domestication of pig land has taken a rudimentary form at that time.

That's what I know.

The Tooth Beast (featured in the third episode of the BBC Walk with the Beasts)

The ancestor of the pig is the ancient giant pig that lived 66 million years ago.