For a long time, man did not disturb the balance existing in nature. But gradually, there were more people, they needed more and more food. Ancient people began to hunt large animals and killed many of them. Scientists believe that in the extinction of mammoths, woolly rhinos, cave bears, ancient hunters played a certain role. These were the first losses of nature at the hands of man.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.