explaining epigenetics .. adding more nurture to the nature-nurture mix

A log-worthy RadioLab episode - Inheritance - Which includes a lovely explanation of epigenetics, explained through some beautifully told stories, as usual.
Listen, to find out how, for instance, mom's licking turns on a behaviour, via protein, via turned-on-gene ..

From the site: http://www.radiolab.org/2012/nov/19/:

"Once a kid is born, their genetic fate is pretty much sealed. Or is it? This hour, we put nature and nurture on a collision course and discover how outside forces can find a way inside us, shaping not just our hearts and minds, but the basic biological blueprint that we pass on to future generations."

the file is here ...

http://www.podtrac.com/pts/redirect.mp3/audio4.wnyc.org/radiolab/radiolab111912.mp3

and streamed here
http://www.radiolab.org/audio/m3u/251876/

Another brilliant RadioLab's episode. Check out their podcast - it's some of the best produced radio, ever! .. methinks