Perhaps the most common argument amongst evolutionists is that creationists don't understand it, hence the complaint when those who don't say, "why are monkeys still around then?"
I have drawn a simplified picture to show a false-evolution, this is only an analogous picture, it doesn't represent what evolution claims except for in some simplified expression. Basically it's to show that evolution can be understood in it's claims, even though it isn't accepted. (Proof you can understand it but not accept it.)
This is of course a watered-down version, there would be many more species and lineages in a full diagram. Accuracy of species isn't the point, the point is that it isn't hard to understand the logic of descent.