Xenogenesis Author:Octavia E. Butler We had done our best to destroy ourselves, but in the aftermath of Earth's final war, the Oankali arrived. They rescued as many people as they could, then set about to make the devastated planet habitable again. The price of their aid: the irreversible transformation of humanity into something else. For the Oankali were genetic engineers -- a ra... more »ce that had survived by interbreeding with other species.« less