Radiolab podcasts cover a wide range of subjects, from punk rock in Cuba to why quicksand isn't scary anymore. All the podcasts mix story telling with audio touches that really bring them to life. The latest episode covers CRISPR and genetic manipulation, fascinating stuff.
Hidden inside some of the world’s smallest organisms is one of the most powerful tools scientists have ever stumbled across. It's a defense system that has existed in bacteria for millions of years and it may some day let us change the course of human evolution.