I believe that evolution is real as there is just too much evidence with much of it compiled in Dawkins 'The Greatest Show on Earth'. There is just far too much evidence to refute IMO. Now could aliens have planted the seeds of life like in Prometheus? Possibly, but we have no evidence for that, so I would just go with the evidence that exists as it is all that we have. Life started and then it evolved and I am comfortable with that until something comes along to demolish it. That is what I like about science is that it is theory and open to change providing something more concrete comes along to throw it onto a new path. But the theory of evolution does fit into place quite perfectly.

Do you have a better suggestion than evolution, Alpha?