As Dawkins explained: It could be that at some earlier time somewhere in the universe a civilization evolved by probably some type of Darwinian means to a very, very high level of technology and designed a form of life that they seeded onto, perhaps, this planet. Now that is a possibility, and an intriguing possibility, and I suppose it’s possible that you might find evidence for that; if you looked at the details of biochemistry and molecular biology you might find a signature of some sort of a designer.
