Humans, dogs, pigs, and cows are of the same kind, and dogs, pigs, tigers, and cows are not of the s

All living things were the same 3.5 billion years ago!

Because the earth's primitive atmosphere is rich in methane, ammonia, carbon dioxide, water vapor, etc., these gases are first synthesized into small molecule organic compounds such as amino acids and fatty acids under the action of external high energy (ultraviolet rays, lightning, high temperatures). These small molecule organic compounds, under appropriate conditions, can be further combined into more complex proteins, nucleic acids and other macromolecular organic substances, and after further evolution, finally produce a multimolecular system with a very complex structure that can continuously renew itself, thus giving rise to primitive life. When primitive life in non-cellular form appeared on Earth, since there was still a lack of oxygen in the atmosphere, therefore, they must have been anaerobic and heterotrophic types.

The earth was formed about 4.6 billion years ago, and the 3.5 billion-year-old fossil filamentous bacteria found in the Vara Wonna group from Australia suggest that the origin of life, that is, the process of chemical evolution, should have occurred about 1.1 billion years after the formation of the earth. The emergence of life was one of the greatest leaps in the history of the Earth's evolution, which moved the history of the Earth from the stage of chemical evolution to the stage of biological evolution.

The first life should be a non-cellular life, in order to ensure the normal exchange of substances between the organism and the outside world, the primitive life formed a cell membrane in the process of evolution, and prokaryotes with a cellular structure appeared. Cells are the structural, functional and reproductive units of life, and the creation of cells is a major leap in the history of life. At present, the earliest reliable fossil with a cellular structure found on Earth is the filamentous bacterial fossil in the Valaunna group.

So people, dogs, pigs, cows are of the same kind, and even all creatures are of the same kind! But only 3.5 billion years ago!

Chicken, dog, sheep, pig, cow, the word that does not belong to the same category is chicken.

Everything else is 4 legs.

All life is still evolved from cells, and it doesn't make sense to say that.

But they still eat as usual.

Horses, cattle, pigs, and dogs belong to different families under the class Mammalian Equidae, cattle belong to the Bovidae family, pigs belong to the pig family, and dogs belong to the canine family, and these families belong to the same taxonomic level, not to say that they are one family. Echinoderms are inferior to arthropods, and generally speaking, animals on land evolved from animals in the ocean, so animals on land are generally higher than those in the ocean. Of course, there are special ones, such as marine mammals, whales, sea lions, etc.

Hello, chickens don't fall into the same category as several others.

It's a chicken, because it's the only one with two feet on the ground.

Tiger, it seems that yes, because the tiger is not a family member.

Chickens are not of their kind.

Because chickens are birds, they are birds, and everything else is mammals.

Chickens Chickens are poultry and the others are livestock.

Dogs have long paws for dogs and chickens and the other three are hooves.

Chickens are not of the same kind, chickens belong to poultry and belong to domestic animals.

Chickens are birds, and the others are beasts.

The rat and the bull rat represent wisdom.

The ox represents diligence. Wisdom and diligence must go hand in hand. If wisdom alone is not diligent, it becomes clever, and if it is only diligent and does not use its brains, it becomes stupidity.

So these two must be combined, this is the first set of expectations and requirements of our ancestors for the Chinese, and it is also the most important group.

Tigers and rabbits.

The tiger represents bravery, and the rabbit represents prudence. Courage and prudence must be tightly combined in order to achieve the so-called boldness and carefulness. If bravery leaves prudence, it becomes recklessness, and if you are not brave and cautious, prudence becomes timidity.

So when we show caution, we must not think that we Chinese do not have a brave side.

The dragon and snake dragon represent fierceness, and the snake represents flexibility. The so-called rigid is easy to break, too rigid and easy to break, but if there is only a soft side, it is easy to lose assertiveness, so the combination of rigidity and softness is our ancestral teachings of the past dynasties!

The horse and the sheep represent the indomitable and straight to the goal, and the sheep represents harmony. If a person only cares about himself and goes straight to the goal, regardless of the surroundings, he will inevitably keep bumping into the surroundings, and in the end he may not be able to achieve the goal. But if a person patronizes and is in harmony with his surroundings, he will not even have the direction after that, and the goal will be lost.

Therefore, the indomitable disposition must be closely combined with harmony, which is the fourth set of expectations of our ancestors for the Chinese.

Monkeys and chickens. The monkey represents flexibility, and as for the chicken, there was no clock in the previous era, and the beginning of the day was determined by listening to the rooster's crow, so the rooster crowed regularly, which represented constancy. Flexibility and constancy must go hand in hand. If you are flexible and not constant, no matter how good the policy is, you will not be able to reap the rewards in the end.

But if it is just constant, a pool of stagnant water, and an iron plate, then there will be no innovation and no progress.

Dogs and pigs represent loyalty, and pigs represent easy-going. If a person is too loyal and does not know how to be easy-going, he will reject others. And conversely, if a person is too easy-going and not loyal, the person will lose his principles.

Therefore, whether it is loyalty to the nation and the country, loyalty to the team, or loyalty to one's ideals, it must be closely combined with easy-going, so that it is easy to be truly loyal to the heart. This is what we Chinese have always insisted on the inner circle and outer square, and the gentleman is harmonious and different.

Everyone in Chinese has their own zodiac sign, some people belong to pigs, some people belong to dogs, what is the meaning of this? In fact, our ancestors expected us to be mellow, not biased, and asked us to know how to cut into the opposite side. For example, a pig can pursue loyalty in his easy-going nature, while a dog person can be easy-going in his loyal nature.

I have an exam paper with this question in my first year of junior high school.

The story is a contemporary fairy tale and has nothing to do with religion.

God created man, and man's lifespan is actually very long, at least much longer than it is now.

One day, people were so tired from their work that they felt that life was boring, so they said to God, "I want to have an easier life."

God: To live an easy life, you have to pay some priceblablabla (boring truths omitted hereinafter).

So human beings gave up their tenths of their life expectancy in exchange for not having to work in the fields, and this part of their life was given to the oxen, so that the cattle could plough the fields instead of people;

Humans gave up one-tenth of their life in exchange for not having to grind the wheat, and gave it to the donkey to pull the mill;

Humans gave up one-tenth of their lifespan in exchange for not having to look after the home, which gave it to the dogs, so there were watchdogs.

So human beings are left with a playful childhood and a life span of eating and waiting for death, but God can't see it!

So half of the life expectancy of a person's childhood was given to the monkey, and the task of eating and waiting for death was given to the most intelligent animal, the pig...

As a result, there is not much left of the long life span of human beings.

Dog. Pigs don't have any loyalty at all. Cattle are industrious and sincere, but there is a difference between them and loyalty.

It depends, but dogs are generally more loyal.

Dogs are the most loyal to humans, but cattle are loyal and contribute more to humans.

Hello! Flower dogs can also be counted as scum. Only the rooster is two-legged, and the other four-legged rooster, his brother and he don't take the initiative to bite. Only shoot the dust quietly, there are flowers and dogs will bite.

If it helps you, hope.

Mianyang. Everything else is adjectives plus nouns.

Sheep is a name directly.