Why did ancient man need knowledge of natural sciences?

Surviving in the absence of civilization is hard enough.

But it becomes even more difficult when you realize that there are a huge number of different dangers around that await you at every corner. Be it predatory animals, terrain and weather features, poisonous berries, and so on.

Therefore, in such a situation, it is simply necessary to know the rules and laws by which this world operates. It was in this situation that the ancient people found themselves. That is why they needed knowledge of natural sciences in order to survive.