What if "upright apes" and "tungsten-steel dragons" were born at the same time...
What if "waves of undead" and "bloodthirsty insect swarms" coexisted in the world...
What if "nanobot gray goo" and "elemental spirits" fought each other to the death...
What kind of world would that be?
More importantly, how would such a world develop?
This is the story of species evolution, setting out from the "cradle."
The birth and extinction of every species is remembered by someone.
PS: This book leans toward hard science fiction, and its worldbuilding is relatively complex. Every species in the book is entirely fictional. It contains elements of spiritualism and agnosticism, and falls under soft science fiction (fantasy).
PS2: The author does their utmost to make the evolution of species and the development of civilizations plausible. The narrative may not be very approachable for readers from the humanities who have never read science fiction, so please read at your own discretion.
PS3: For now, there are no plans to create a phylogenetic tree or draw a map of the world.
