I heard this on the PRX Station Showcase podcast. What a great piece! It's a pretty good topic, but I bet Sean could take any topic and make it an interesting listen. He's not flippant, but he doesn't take it too seriously (at least this topic, on Are Animals Creative). This is the kind of stuff I point to when people say public radio is boring and monotone.

I put "Amusing, Light, Humorous" as the tones, but all but the "dark" types would fit. It's just a good overall listen.