While Lame was pulling on the wooden door and scratching his hair, Han Cheng had already walked out of the cave.

He was holding a ceramic spoon in his hand, and in the spoon was a spoonful of semi-solid, whitish substance.

This is animal fat.

With the emergence of rabbit traps and their increasing number, the Green Bird Tribe can harvest a lot of small wild animals or birds every day.

Some of the prey was eaten on the same day, while others were salted and dried into bacon.

However, before doing all this, Han Cheng would remove the fat from their abdominal cavity or other parts of the body, heat it in a jar, extract the oil, and store it in the jar.

According to the current weather, the grease in the jar should have all melted and turned into liquid, but the temperature inside the cave is much lower than outside, so it is only in a semi-solid state.

Bo and Mu Tou both recognized what the Son of God had brought, and they had very deep memories of the oil.

After the oil is heated, put the washed vegetables in, stir them constantly with chopsticks for a while, and sprinkle some salt on them. The taste is so good that you want to swallow your tongue.

Adding some fat to the already delicious salted fish soup will make it even more delicious... Adding some salt to the fat will make it delicious even if you eat it plain...

Seeing the Son of God pouring the spoonful of delicious fat into the stone pit under the door axis, Bo and Mutou felt very sorry and stretched their necks involuntarily, as if they wanted to get the fat out and put it in their mouths.

While they felt great pity, they were also very confused as to what the Son of God's intention was in dumping this delicious thing here.

Could it be that this delicious fat has other uses besides being eaten?

Lame soon found out another use for the grease. He opened and closed the door, which was obviously much easier. Looking at the grease in the stone pit that had stained the door hinges a little wet, he couldn't help licking his lips.

Good things are indeed good things. Not only do they taste good, they are also very easy to use.

After the wooden door was installed, this house with a rock foundation, mud walls and black tile roof finally looked like it belonged.

All that remains are details. After a short rest, you can move in with your luggage.

Of course, Han Cheng would not live there now. It was midsummer now, and the caves where the tribe had lived for generations were covered with thick rock, which prevented sunlight from penetrating, making it a good place to escape the summer heat.

Although the walls of these three tiled houses are also thick, they are far less thick than the caves, and it feels a bit stuffy to live in them at this time.

Moreover, it is a newly built house and it is very humid, which is not good for your health to live in.

Standing in front of the wooden door, looking at the pottery in the tribe, Han Cheng sighed slightly.

His previous estimate of the situation was too optimistic. He thought that the tribes, after experiencing the benefits of pottery at the party, would intensify their hunting after returning and then exchange food and other things for pottery.

Then their Qingque tribe can just sit back and reap the benefits of this unique business.

As a result, it has been almost two or three months since the joyful party, and so far not even one tribe has come to exchange. This makes Han Cheng quite helpless. He can't even be a profiteer who brings civilization to other tribes.

Thinking about the days that the Green Bird Tribe lived before they developed fishing in fish cages as a stable food source, Han Cheng shook his head slightly, thinking that he had indeed taken things for granted.

Because food is difficult to obtain, it is particularly precious at this time. In the absence of stable food supply, the people in those tribes must have had many hesitations about exchanging food for pottery.

Fortunately, more than a month ago, in order to solve the problem of inbreeding in rabbits, he remembered the simple and effective artifact of the rabbit trap.

With the use of these weapons, the Qingque tribe made money every day. These prey not only enriched the variety of food for the Qingque tribe, but also greatly alleviated their fur panic.

After years of hunting, the Qingque tribe has indeed accumulated a lot of furs.

However, since they only knew how to make very simple saltpeter, and had not paid much attention to furs before, many of the old ones had already gone bad.

After Han Cheng's arrival, fur was developed into many new uses and the stock of fur was rapidly decreasing. In addition, over the past year or so, under the leadership of Han Cheng, the people of the Qingque tribe have been concentrating on construction and have basically not gone out hunting, so the problem of fur has become more prominent.

Fortunately, with the advent of rabbit covers, the problem of fur shortage can be temporarily solved.

However, this is not a long-term solution. The things that can be supported on a piece of land are limited. As more and more prey fall into the trap, the number of prey around the Qingque tribe is also decreasing rapidly.

Today, the number of rabbit traps set is five or six times more than at the beginning, but the number of prey obtained every day has not increased much. This is a testimony to our success.

As the number of prey in this land decreases, the Qingque tribe will gradually expand the scope of their traps...

Let's leave it like this for now. In autumn, when the fruits are ripe in large numbers, this row of houses will be almost completed, and the eldest brother and others will have time to go hunting.

By then the fur problem will be alleviated a lot.

Han Cheng closed the door and went to the chicken coop again. Ignoring the smell of chicken shit coming from inside, he looked at the naked chickens inside with great interest through the gaps in the wooden rafts covering the chicken coop.

There were eleven pheasants in the chicken coop, two of which looked obviously different from the other nine. Not only were they bigger in size, but even the color of their feathers was quite different. Their wings were not as long, and they were not as good at flying as the first type.

Compared with the previous ones, this type of pheasant is undoubtedly more suitable for domestication and breeding.

It’s just a pity that these two guys are both males, and no female has been caught so far.

In order to pass on the good genes of these two guys, Han Cheng caught all the male pheasants of another kind of pheasant and broke their necks.

This pheasant was really miserable. Not only did it have its tail feathers plucked out, it had to live with its bloody butt naked, but it still couldn't save its life. Moreover, after its death, its hens were taken over by two guys whose surnames were unknown, Wang or Song...

Han Cheng was not worried at all about whether these little hens would remain chaste for the poor rooster and not let the two roosters that looked obviously different from them touch them.

It’s not that he doesn’t believe in the moral integrity of these little hens, but that he has enough confidence in these two roosters.

When he was in school, he once saw with his own eyes how an old rooster raped a duck at the entrance of the village.

Since that time, Han Cheng has firmly believed in the fighting ability of the rooster.