I can feel my brain mutating trying to keep up with the flood of Dr. Wells' knowledge. Straight ahead Q and A conversation, really interesting information and speculation on evolution and migration. (Creationists take your blood pressure medicine.) The production has some glitches edit-wise, nothing major, just slightly distracting cuts that would be less distracting were I listening while doing the dishes, say, as opposed to sitting still,headphones clamped on. Vogel asks good questions and Wells communicates fluidly, and in layperson friendly-speak. Good science programming, good points raised, food for thought. sl