One argument against evolution is that we can't see it. This is not true. We see it everyday all around us. However, because we have gotten further and further from nature we have a tendancy to miss it.
When was the last time you visited a creek or pond. Most likely it wasn't very recent or if you had, did you take the time to observe the incredible experiment that was taking place only a few feet away?
Perhaps if you had looked closely you might have observed evolution in real time. No one can deny the remarkable transformation that takes place over a few days when a tadpole changes from an uber sperm-like-being living in the water into a air breathing amphibian on land. Scientist call this "Metamorphosis" but we know better. If this isn't evolution in action then we don't know what is.
(To some it is clear Unohu is at work here. F.B.B.)