The Life 
What the Life is?
What the life is? In Shandarism, the life is the manifestation of the conscience and its energy incarnated on Earth. But this same conscience can be incarnated on other planets located in other galaxies and stars than ours. So, the life is universal.
Panspermia
The life on Earth started several billion of years ago. When the life is came from stars, by a crash of meteorites on Earth. They brought with them the first molecules of the life. The favorable terrestrial conditions have allowed their blooming thus. It was the Precambrian period.
Primary, Secondary, Tertiary and Quaternary Era
After the Primary or Palaeozoic era. It began approximately about 570 Million years and ended approximately 230 Million years ago. During this period, the organic molecules diversified. The first living organisms made their apparition on our planet. It was the time of the first foams near the water ponds, then the ferns and many other vegetal. Soon the lands have started to be colonized by those latter. There will appear in water first fish, followed Amphibians then reptiles which will rise out of water to reach the lands. Will come the Secondary or Mesozoic era. This era made following to the end of the Primary Era, there is approximately 230 Million years, and was completed approximately 65 Million years ago. During this Era a dominant species will be born, those of the Dinosaurs. Reptiles giant, sailor, terrestrial and flying that will reign during million of years on this planet. Others species simultaneously with the Dinosaurs will also be born. The end of the Secondary Era will be marked by global upheavals, the disappearance of the Dinosaurs with the large majority of the fauna and the flora of this epoch. Then will come the Tertiary or Cenozoic era. Old of 65 Million years, it was completed approximately 1,8 Million years ago. The Tertiary Era will succeed to the Dinosaurs and other Reptiles, allowing the Mammals to realize theirs evolutions. The ecological niches, left free by their Dinosaurian predecessor will be reconquered by the small Mammals in less than 10 Million years. New animal species and vegetal will appear and other will continue their progression. Lastly, the Quaternary era. It began approximately 1,8 Million years and continue nowadays. Climatic upheavals will occur alternating glacial periods and period of global warming. Many species will not survive it. Later will emerge from the African plains a new species, that of the primates. Among the latter, a family of primate will dissociate of others. The Big monkeys. In their long evolution, this family of primate will give birth finally a new dominant species for this planet: The mankind.
Life in Universe
The life is opportunist and it appears on planets there or the conditions are favorable. Thus thousands another planets to scatter in cosmos have these conditions. The life is consequently present everywhere in universe. To believe that man is the center of universe and the only existing intelligent being is today an overtaken vision. Initially, they are microscopic life like the bacteria or virus for example. In the second time will come forms of life more elaborate having their own ecosystem like vegetal and animal. Lastly, in a third, some forms of life which have developed an intelligence with the capacity of thought, to communicate and build.
Universal family
All form of life on earth is composed of the same basic chemical elements, carbon, magnesium, calcium, fluorine, and so forth. So, all the living beings are linked by this chemical element. Consequently it is recognized and to accept that the men, but also the animals and plants are members, certain close and others more distant of a same family. But more again, if all the forms of life in the universe have also this same chemical base in common, that means that the humans and the extraterrestrial are also cousins.