Wow, WHAT a thought! Hmmm......
http://en.wikipedia.org/wiki/Uplift_Universe
In the Uplift universe an intergalactic civilization called the Five Galaxies, comprising a multitude of sentient races, has existed for billions of years. This civilization is perpetuated by the act of
Uplift, in which a "patron" species
genetically modifies a non-
sapient "client" species until it is sapient. The client species is typically
indentured to its patron species for 100,000 years. A patron species gains considerable status, and patrons and clients often unite into powerful
clans. Patron status can be lost due to extermination, or gross crimes against the galactic civilization.
It is generally accepted in this universe that the process of Uplift was initiated at least one billion years ago by a species known only as the Progenitors. Humanity is therefore a rare anomaly — a species with no apparent patron race. Whether humanity truly evolved independently, or whether it was criminally abandoned by an unknown patron early in its uplift, is a topic of fierce debate. Most of humanity believes itself to be a
wolfling species that emerged into sapiency solely through natural
evolution, without genetic manipulation of a patron species. This belief is considered heresy and ridiculous by most of the galactic civilization and has made most of the galactic powers to be enemies of
EarthClan. The fact that Humanity had already uplifted two species (
chimpanzees and
bottlenose dolphins) when it encountered the galactic civilization gave Humanity patron status, which is one of the few lucky turns it has had in its difficult position as pariah in the galactic civilization. This saved humanity from the likely fate of becoming client to another race through forced adoption or being exterminated for the environmental damage done to the Earth and its native species.
the most Excellent Mr Brins site
http://www.davidbrin.com/upliftbooks.html
imho this guy isnt far off the mark in his "fiction" and i would exhort anyone to read the uplift series.
i think in our case our genes have already been taken and are forfeit, "they" will use anything they find useful in our genetic collection, andthe question of wether we as a "species" may or may not make it, is moot .
logically though if you have all the gene samples you want of a given species and it in turn starts wiping out other species on a grand scale, it can flushed in favour of greater diversity.
you wouldnt let the lions eat every other animal at the zoo.........
and once they started eating the keepers............