Each year, hordes of people travel to places where they can watch wild salmon swim upstream, spawn and die. It's probably some sort of deep metaphor for life itself. While we don't have salmon on our show, we do catch Fathead minnows spawning under a floating piece of wood, and even do some snorkeling. This time we have a guest, fish biologist Hilary Jones, the "Queen of the Fatheads." Together with the entire production crew, they sing "a wholesome environmental anthem for the 90s."