One curious difference between humans and the rest of the great apes is the fact that the latter all seem to have one more chromosome than we do. Now, since evolutionary theory predicts a very close genetic relationship to our closest cousins, this oddity is one that ought to make us question the validity of evolutionary theory: how could we be missing an entire chromosome and not be eating dirt and running into walls?If you're a creationist or intelligent design theorist, this anomaly might sound like precisely the kind of evidence that would refute evolution. So how does an evolutionary account explain this strange state of affairs?
In the following clip, Professor Ken Miller explains the elegance and sophistication with which real scientists can answer these seemingly difficult questions :)
If you're interested, you can watch Miller's entire lecture here.
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