This trilogy by the late Octavia Butler is also found collectively as Xenogenesis and Lilith's Brood. They comprise some of the best Science Fiction I have ever read and I have actually bought used copies just to be able to give them away to interested readers. Yup, I love’um that much. If anyone else has come across these works and was intrigued by the ideas presented within, I’m very game for a good discussion.
Given the number of ladies on the site, I am quite surprised to have seen this thread go by unanswered.