The Dominant Species

In a future without Man... someone else will strive for dominance of Earth... In a future without Man... someone else will strive for dominance of Earth. A war fought by all means, with the most sophisticated mechanical devices and weapons. The mystery of the genesis of new a species will rekindle interest in the ancient people of the Earthlings. What will be the disturbing discoveries? Will the resolution of the mystery decide the fate of the conflict?