Copernicus
Industrial Strength Linguist
Richard Dawkins, in his book The Greatest Show on Earth, had an amusing take on the futility of arguing with creationist proponents of the "missing link" criticism. Scientists have been discovering transitional fossils (aka "missing links") for decades now, because there will always be gaps in the fossil record. Nobody expects otherwise. But every time someone discovers a new transitional fossil, that converts one gap into two, because there are now new gaps between the new transitional fossil and the older and newer fossils on either side of it. Paradoxically, the more "missing links" one discovers, the more gaps there are in the fossil record!