Belyaev's Foxes on National Public Radio

I wrote about the evolution of the dog in a pretty popular post on my blog a while back. In it I discussed Belyaev's fox experiment and its implication for two of the theories on how dogs were domesticated. WNYC's Radiolab (a podcast you should start listening to like, yesterday) just broadcast a very entertaining (as usual) show on "change." and discussed the foxes. The segment includes a theory on how selecting for behavior resulted in the startling physical changes in the foxes.  
Here's the segment: