More Radiolab pimping…
“Brian Hare tells us the story of Dmitri Belyaev, a geneticist and clandestine Darwinian who lived in Stalinist Russia and studied the domestication of the silver fox. Through generations of selectively breeding a captive population, Belyaev noticed not only increased docility, but also unexpected physical changes. Why did these gentler foxes necessarily look different than their wild ancestors? Tecumseh Fitch has a hypothesis, something about trailblazing cells and embryonic development.”
I saw this on a Nova or Nature special several years ago and was fascinated. Listen, it is only 17 minutes long, and is SUPER interesting!