After all, Professor Kangda is a big professor who has seen big scenes, and he is no stranger to lectures, so no matter how many people in the audience there are, he will be accustomed to it, and this kind of large classroom of 1,000 people is nothing to him at all.

"It seems that people don't hate me yet, I just saw a lot of familiar faces. Professor Kangda smiled and said, "All the students of the School of Biology who just listened to my lecture yesterday, are you here again today?"

The audience laughed and applauded, expressing their welcome to Professor Kangda.

Professor Kangda raised his hand to signal the audience to be quiet: "There is no need for applause, we are all our own people, and we are very familiar with each other, I will not introduce myself, if you don't know me, you can consult various online encyclopedias by yourself, I believe that the introduction to me above is probably more detailed than the self-introduction I did." ”

The audience laughed again, and it seemed that they were quite accepting of Professor Kangda's humor.

"I remember we talked a lot about human evolution yesterday, but in my personal understanding, when human beings have a 'cognitive revolution', they can't simply reflect on biological evolution, because with understanding and intelligence, human beings are different from other animals. Professor Kangda said lightly.

At this time, the people in the audience have quieted down, everyone knows that the real lecture is about to start, Professor Kangda is a person who has a very fast entry point, the last sentence is still joking, this sentence may go directly to the topic, his consistent style.

"As we all know, we human beings have invented a lot of imaginary reality, that is, because of this, we have developed a lot of behavior patterns, which is the so-called culture, and when culture appears, it can no longer stop changing and developing, and these unstoppable developments and changes have evolved into what we call history today. ”

Professor Kangda spoke brightly.

"That's why I've been saying that the 'epistemic revolution' is the starting point of history separating itself from biology and existing independently, so if we want to study the biological evolution of human beings, it must go back to before the 'epistemic revolution', before the 'epistemic revolution', all human behavior can only be called the category of biology, that is, what people commonly call prehistory, of course, the word 'prehistory' was invented by human beings themselves, because people want to, even in' The cognitive revolution was also a species of its own before that, and it was also different from other animals. ”

At this point, Professor Conda paused.

Because he knew that there would be many people who had doubts at this time.

After all, this is a world controlled by people, so humans just want to be different from other creatures.

Finally, a student asked, "Professor Kangda, aren't we human beings mavericks?"

"Of course not. Professor Kangda said lightly: "In the eyes of many people, human beings are indeed a maverick creature, but in fact, before the 'cognitive revolution', human beings were not uncommon animals, ordinary animals, at that time, human beings could not stand at the top of the food chain, because they did not have the sharpest teeth and the most agile skills, and many animals could eat humans." ”

At this time, some students did not understand what Professor Conda was trying to express.

Professor Kangda smiled: "I know that many students are very confused about the topic of today's lecture. ”

The audience was silent.

"The theme of today's lecture is that there is no theme. Professor Kangda shrugged his shoulders: "I just want to talk to you about the period of biological evolution that belongs to human beings, and the people at that time are completely different from the people now. Let's put it this way, there were many human races in the beginning, unlike the people who are now people, all people who live on land, people who live in cities and villages. ”

"What Professor Conda means is that people are nothing special like any other animal. ”

"That's right!" Professor Conda raised his voice when he heard the question, "It's just nothing special. ”

"If we say that humans are all the same species, why do we Asians, Europeans, and Africans have different skin colors, different hairs, and different physiques?" another student asked.

Professor Kangda immediately smiled: "This classmate, you are definitely not a student of the School of Biology. ”

Many of the students present who were not from the Faculty of Biology asked questions, saying that they did not understand.

"All living things have to be divided into different species, what is the same species?" Professor Kangda said.

The biology students replied, "Humans are the same species." ”

"Very good, of course human beings are the same species, whether they are Asians, Europeans or Africans, they are all the same species, because the same species can have a relationship with each other to reproduce, as long as they have a relationship with each other, the next generation can be produced is the same species, Asians and Europeans can reproduce together, Europeans and Africans can reproduce together, they can all conceive and have children, of course, they are the same species, and the mixed-race children born are all more beautiful and smart. ”

At this time, some non-biology students nodded in understanding.

"Then let me ask you, are horses and donkeys the same species?" Professor Conda said.

Someone immediately answered yes.

"I know what you think, because you know that horses and donkeys have a common ancestor, many similar physical characteristics, and are able to combine with each other to have a relationship. Professor Conda said.

Yes, horses and donkeys do give birth to mules.

"But I tell you, they are not interested in each other, and even if they are deliberately allowed to have a relationship, the mules that produce the next generation are infertile. Professor Conda smiled.

At this time, some people in the audience suddenly realized.

"The DNA mutation of the donkey cannot be passed on to the horse species, and the horse cannot be passed on to the donkey, so the horse and the donkey belong to two different species, and they have their own evolutionary paths. Professor Conda said, "Now you understand what I mean, don't you?"

"Understood. ”

"I don't understand. ”

Obviously, some people are quick to accept, some people are slow to accept, and those who are slow to accept have not yet figured out what Professor Kangda meant, what does this have to do with race.

"Let me put it this way, if you use a dog analogy, do pit bulls and spaniels look completely different, but they're the same species, they have the same DNA pool, so they're very willing to have relationships together and breed, and their puppies can grow up to breed with other dogs, because they're the same species. Professor Conda said.

In the same way, people are the same, strong European and American blacks and petite Dongying women are also of the same race, and they can have children when they have a relationship, regardless of whether the child is a little black egg or a little white egg, they will have the same reproductive function.

So any kind of person in this world is the same species.

Now if there are still people who don't understand, they are really studying in college for nothing, their brains are too stupid, and rotten wood cannot be carved.