Well, with the initiative of a new race. Now think over the main points - a matter of time.
A sketch of the circus traders wandering from the oasis to the oasis and selling rare animals, which they collect along the way (in places where no one usually pushes).
The world of the ziran itself, Urtsahash, is terribly old, like its sun, Sha, a red dwarf. (A red dwarf can shine very very long). Once the Tondruks, living ships carrying seeds of life in the universe, brought seeds to Urtsahash. Nikum, who were then in their material form, helped the life to form and consolidated it