What level can human life span rank among mammals?

According to the old tradition of China people, this is the New Year. As time goes on, people live longer. In the season, people are one year older. Now the life expectancy of many countries can reach over 70 years old, compared with the Tang Dynasty? Is it rare to be 70 years old? Now the average life expectancy of the population has increased a lot. In the earlier bronze age, the average life expectancy of people was only twenty years old, while in primitive society, it was only ten years old.

Many people think that turtles will live longer than humans. In fact, it's good that ordinary turtles can live for 30 to 50 years. Only a few turtles can live 100 or more than 200 years. The life span of human beings is among the best among mammals, even in the whole animal kingdom.

Among mammals, bowhead whales and elephants can live longer than humans, individual bowhead whales can exceed 150 or even 200 years old, some artificially raised elephants can exceed 100 years old, and some blue whales can approach 100 years old.

The increase of human life expectancy is closely related to the improvement of living standards and medical and health conditions. With the development of medicine, human life expectancy is expected to be further improved. Those whales and elephants with big heads can live longer because of their big heads.

Large species often have a long gestation period and sexual maturity, for example, the gestation period of elephants can reach more than 22 months, and that of whales often exceeds 1 year. Elephants reach sexual maturity at a similar age to humans, usually in their teens. Large species can only have one child at a time. This determines that such species must have a long life if they want to survive on the earth.

Primitive people often have to fight with some wild animals in their lives, which will reduce their average life span, and big creatures will be much safer in nature. The bigger an animal is, the smaller the ratio of its surface area to its volume, so as to maintain its body temperature with higher efficiency.

The older you get, the greater the chance of cancer. At present, there is a one-third chance that you will encounter cancer on the big date of your life. Elephants and bowhead whales have a skill. They are not prone to cancer. Studies have shown that they contain tumor blocking genes, which can effectively screen out cells with genetic errors during division, thus effectively protecting their own lives. If humans can conquer cancer, people's life expectancy will be further improved.