The snow melts, a hint of green reappears on the earth, and the new year arrives.

Su Yan walked out of the house, breathing in the breath of spring, and a trace of resoluteness flashed in his eyes.

"It's time to start!"

According to the year Su Yan was born, Su Yan is already twelve years old this year instead of eleven, and this year it has been a year since the Wolf Tribe attacked the Snake Tribe's residence for the second time, and two years have passed since the Snake Tribe and the Tiger Tribe formed an alliance.

In the early spring of last year, the snake tribe and the tiger tribe jointly held a grand sacrifice, and once again invited people from the three tribes of the deer tribe, the rabbit tribe, and the mountain tribe to participate in the sacrifice.

Taken by the strong strength of the Snake and Tiger Alliance and the fact that they were able to get a return gift from the Snake and Tiger Tribe Alliance after participating in the sacrifice, the leaders of the three tribes of the Deer Tribe, the Rabbit Tribe, and the Mountain Tribe happily came to participate in the sacrifice with their teams.

When they came to the Snake Tribe's residence, the people of the three tribes were shocked by the Beijing Temple made of human heads outside the gate of the Snake Tribe's residence.

"Why are there so many heads?" "The Snake and Tiger Tribal Alliance has become a vicious force? "What should I do? ”

The three leaders of Yuan, the leader of the rabbit tribe, and the leader of the mountain tribe were in a panic, and at this time, Zhi stepped forward to tell them about the Snake and Tiger Tribal Alliance's elimination of an incoming fierce enemy in winter.

Zhi also exaggerated the strength of the vicious enemy, and the three of them, the leader of the Yuan, the rabbit tribe, and the leader of the mountain tribe all trembled, thinking in their hearts, if this vicious enemy attacked their tribe, would their tribe be able to resist it?

Obviously not, the strongest of the three tribes, the deer tribe, could not withstand this vicious enemy, let alone the weaker rabbit tribe and the mountain tribe.

And the Snake and Tiger Tribal Alliance was able to completely annihilate this vicious enemy, which also made Yuan, the leader of the Rabbit Tribe, and the leader of the Mountain Tribe feel the strength of the Snake and Tiger Tribal Alliance, even if the three tribes of the Deer Tribe, the Rabbit Tribe, and the Mountain Tribe united, they could not confront the Snake and Tiger Tribal Alliance.

At the end of the sacrifice, the visitors of the three tribes left with a gift from the alliance of the snake and tiger tribes—enough fish for everyone in the three tribes to have two full meals.

Everything about the Snake Tiger Tribal Alliance impressed all the guests who participated in the sacrifice, especially the strength and richness of the Snake and Tiger Tribal Alliance.

"If only my tribe were as strong and rich as theirs." Some people have such thoughts in their heads.

After the sacrifice is over, the Snake and Tiger Tribal Alliance has returned to normal life, and "this year" the Snake and Tiger Tribal Alliance does not have many tasks, the most important one is to build houses.

In the spring of the tenth year, the Tiger tribe moved to the snake tribe's residence, and the houses in the snake tribe's residence could not meet the needs of all the people of the snake and tiger tribes, and finally the snake tribe vacated two houses, so that all the people of the Tiger tribe who moved over lived in the houses, and the snake tribesmen who originally lived in these two houses temporarily moved to the cave to live, and before the end of spring, they moved into new houses to live.

By the spring of the eleventh year, the number of houses in the residence of the snake tribe reached twenty-six, including five special houses, which temporarily satisfied the residence of all the people of the snake and tiger tribes.

However, Su Yan felt that the number of houses was too small, so he continued to build more houses, and with the area of the snake tribe's residence, he could build a maximum of fifty houses (counting the gaps between houses), which would occupy about half of the area of the residence, and any more would be crowded.

By the end of the eleventh year, the number of houses in the Snake Tribe's residence had reached forty-one, excluding five special houses, and the remaining thirty-six houses could accommodate more than six hundred people, even if the three neighbors of the Snake and Tiger Tribal Alliance, the Deer Tribe, the Rabbit Tribe, and the Mountain Tribe, all moved over, they could meet their housing needs.

It is worth mentioning the population size of the Snake Tribe and the Tiger Tribe

At the end of the tenth year, not counting the high-ranking members of the tribe of witches, their disciples, and leaders, the number of adult males in the snake tribe reached thirty-four, the number of adult females reached fifty-nine, the number of minors over 100 reached one hundred and seven, and the number of the elderly and the sick and disabled reached ten, making a total of two hundred and fourteen; The number of adult males in the Tiger tribe reached seventeen, adult females reached thirty-three, minors reached fifty-four, and the elderly and the sick and disabled were three, making a total of one hundred and seven.

The total population of the Snake and Tiger Tribal Alliance reached 321.

By the end of the eleventh year, the number of adult males of the Serpent tribe had reached thirty-eight, that of adult females had reached sixty-one, that of the number of minors over one hundred had reached one hundred and twenty-three, and that of the elderly and the sick and disabled had nine, making a total of two hundred and thirty-five; The Tiger tribe has 20 adult males, 35 adult females, 63 minors, and two elderly and sick people, totaling 120 people.

The total population of the Snake and Tiger Tribal Alliance reached 355 people.

The total population of the Snake and Tiger Tribal Alliance is growing at an annual rate of about 10 percent, and the largest increase is among minors, who already account for more than half of the total population.

Minors can't contribute much to the tribe (children who are close to adulthood are counted as half or a third of the labor force), and they mainly have to rely on adults to collect food to feed them, and too many minors in a tribe will cause a serious burden on the tribe, but minors are the potential of a tribe, and each tribe will have as many offspring as possible while ensuring that the tribe will not go hungry.

The Snake and Tiger Tribal Alliance is not short of food, and naturally hopes to have more offspring, and when they grow up, the Snake and Tiger Tribal Alliance will be even stronger.

Speaking of giving birth to offspring, an incident occurred in the autumn of the eleventh year that brought the relationship between the two tribes of the snake and tiger one step further.

In the autumn, the two tribes have reached adulthood but have not yet had a spouse to choose each other's mates, the adult male of the snake tribe chooses the adult female of the tiger tribe as a mate, and the adult male of the tiger tribe chooses the adult female of the snake tribe as a spouse, but this kind of thing has never happened, the snake witch, the tiger witch, the Zhi, and the four people don't know how to deal with this matter.

In the end, Su Yan made a decision, women should follow men, for example, the adult male of the snake tribe chooses the adult female of the tiger tribe as his spouse, then the adult woman will be a member of the snake tribe in the future, and the child born is also a member of the snake tribe, with the surname snake.

In addition, the identity card should also be changed a little, the woman surnamed Tiger "married" to the man of the snake tribe, and added a "snake" in front of the surname "Tiger". (When the surname becomes a name, that is, the snake and tiger clan, there is also the tiger snake clan)

After Su Yan's decision was made, some women from the Tiger tribe became members of the Snake Tribe, and some women from the Snake tribe became members of the Tiger Tribe, the people of the two tribes lived in the same place, and the standard of living was about the same.

Seeing this situation, Su Yan felt that the time had come for the two tribes to merge into one.