There are two interesting places in the museum, one is the prehistory exhibition hall and the other is the ethnography exhibition hall. Pen & Fun & Pavilion www.biquge.info

Biologists speculate that humans evolved from the ancestors of African gorillas about five or six hundred years ago, and the basis for this speculation is that the genes of African gorillas are as similar as 99% to humans, and they are similar in size and appearance, both are primates, and the kind of intelligence that gorillas show at some times is indeed evolutionary.

Of course, this is just a speculation, and the argument against one side is also sharp: if humans evolved from gorillas, why haven't these gorillas living in Africa changed anything over the years?

In fact, scientists speculate that humans evolved from ape-man, and in the process there may have been two subspecies, one ape-man and one gorilla, but one thing is very strange, that is, gorillas still exist, but why don't ape-humans exist?

According to Darwin's theory of evolution, although nature will selectively eliminate, the number of apes should be quite large, but it is impossible for so many apes to complete all of them to complete evolution, and there are always some people who have not been able to evolve into humans, right? So where are they? Why haven't they found out?

Lin Quan didn't know about these things before, and he didn't think about this aspect at all, but in this museum, the article of a scholar named Simpner aroused his interest, and he knew a lot of things in it.

However, knowing these things, it seems that they are of no use to their own farming!

Before, Azak should have been left behind and Danny Ribbon was brought along, this Nizi studied archaeology, and must know a lot about ancient things, maybe he was also involved in this area.

After visiting the museum, the time was still very long, and the two went to the museum's zoo for a while.

The zoo is quite big, bigger than Lin Quan expected, but although there are many species of animals in the zoo, there are hippos, lions, ostriches and crocodiles and other species, but there seems to be no one to see them, because these animals are too common in Africa, and the native people have no interest in this at all, and foreign tourists want to see it simply go to those national conservation parks in Central Africa to see, not in the zoo.

So in the huge zoo, there are few tourists, and Lin Quan quickly lost interest, just a group of animals, and they are all huge, short-tempered carnivores, herbivores, docile and cute animals, as for everyone's favorite round panda, it is even more gone, so the two of them came in and left hastily.

5000 francs to see such a broken zoo, no matter how you think about it, it's a loss!

However, when the two of them came out of the museum, it was not early, it was about half past six in the afternoon, and when they left the museum by car, there were no lights on the street, but when they arrived at the embassy area, the lights were already bright and pedestrians were crowded.

Niamey is the capital of Niger and the only metropolis in the country, although this metropolis is not rich enough in Lin Quan's eyes, and the city may not be as good as their county seat, let alone their provincial capital Jiangcheng, so he doesn't think this city is any better.

But the people of Niger obviously don't think so, the city is relatively the best infrastructure in the country, the most convenient transportation conditions, and the most able to find opportunities, so it attracts tens of thousands of people to the city every year.

Founded in the 18th century as a small fishing village, Niamey was located near the Niger River, the largest freshwater river in Niger and the second largest in West Africa.

However, Niamey did not have a significant position until the French established a colony in Niamey, and since then Niamey has gradually developed into an important center, becoming the capital of Niger on December 28, 1926, and rightfully the capital of Niger after Niger's independence in 1960.

Niamey's population increased from 3,000 in 1930, about 30,000 in 1960 and 250,000 in 1980 to an estimated 1 million in 2010.

In recent years, the drought conditions in the north have become more and more severe, the rainy season has been shortened, and the rainfall has also decreased, so that the land in the north has begun to gradually desertify, and the trend of desertification has begun to become more and more serious in recent years, so the population moved in because of drought has become the main reason for the increase in population, and Niamey has become the only metropolis in Niger.

The world's population is moving to cities and towns, and this is not just happening in China, it's a trend all over the world, and within a country, the best city is often the most populous city.

New York in the United States, SH in China, Paris in France, Berlin in Germany, London in the United Kingdom, RB (When I came back to check for typos, I found that the system actually replaced some words with letters, which is amazing...... ) in Tokyo, Seoul in South Korea, Moscow in Russia......

The capitals or economic centers of these countries often account for more than 10% of the country's total population, and some even account for 30% or even 50% of the total population, such as Tokyo in RB and Seoul in South Korea.

Big cities have good infrastructure, good job prospects, more opportunities, and are the most attractive to young people, and this is an era of pleasure, from thrift to luxury, from luxury to frugality, a person who comes out of the countryside and goes to the city to find a job, if you let him go back to farming, he may not be willing, this is the reason.

In Niamey, the reason is similar, but it may have been much earlier, because the desertification of the land in the north caused the land in the hands of the farmers who originally had arable land to disappear, or to turn into sandy land, and such land was difficult to obtain a good harvest even if it was hard work, and once the harvest they obtained from the land became difficult to maintain their own survival, these people abandoned their fields and migrated south to the cities.

In fact, this is also a very important reason why Niger's agricultural output is declining every year, the original landed farmers did not have enough to eat, so they abandoned their land and moved to the south, but they could not obtain land in the south, so they became jobless vagrants and needed government relief, while the ranks of slums were even stronger.

And those abandoned by them although the land can not support them, but at least can produce some food for the country, so after being abandoned, at the national level, the food gap is bigger, and the birth rate of the African population is relatively high, the more economically backward the country, the higher its fertility rate, Niger's population in 2000 was only a little more than 10 million, and in 2011, the population has reached 20 million, doubling in ten years, it's not too scary! If China has this speed, I am afraid that the earth has already been squeezed!

With a rapidly growing population on one side and a declining land harvest on the other, it is no wonder that Niger's agricultural situation has not deteriorated.