From MSNBC:
Scientists are fond of running the evolutionary clock backward, using DNA analysis and the fossil record to figure out when our ancestors stood erect and split off from the rest of the primate evolutionary tree. But the clock is running forward as well. So where are humans headed? Evolutionary biologist Richard Dawkins says it’s the question he’s most often asked, and “a question that any prudent evolutionist will evade.” But the question is being raised even more frequently as researchers study our past and contemplate our future. Does evolutionary theory allow for circumstances in which “spin-off” human species could develop again? (See all five possible future humans here).
Some think the rapid rise of genetic modification could be just such a circumstance. Others believe we could blend ourselves with machines in unprecedented ways — turning natural-born humans into an endangered species.
More here.
