A new study asks the idea that a reasonable life is extremely rare, and shows that human evolution is the natural result of environmental changes on Earth.

Researchers from the University of Pennsylvania argue that the appearance of a difficult life, including one person, is not a happy opportunity, but due to planet conditions, over time increasingly increasingly. become suitable.

This rejects the theory that a reasonable life is impossible, because nearly half of the life of the sun is required to evolve people. The researchers believe that important events, such as the increase in the oxygen content in the atmosphere, opened the windows in the Viking's residence, which makes a difficult life possible. Instead of happening by accident, evolution may just follow the natural speed of planets.

If so, on other planets with similar conditions, a reasonable life can arise. The team plans to check its model by studying the biology in the atmosphere of the planets and finding out whether the main evolutionary stages on Earth may occur many times.