I've seen some ridiculous arguments for creationism today. How about an example of current speciation?

The American Goatsbeard comes to mind as well as the link below. Then there is the 20 year experiment with e. coli and several other examples of varying degrees of speciation that we know about. This does not include the changes that we have done for domesticated animals and plants. Seriously, it is hard to consider Yorkies as the same species as Great Danes or wolves, and it is only because we understand that they are closely related that we consider them to be similar species.