Radio Lab explores animals, specifically animals and people coming together. In a cruel trick of evolution, humans can stand just three feet from a ferocious animal and still be perfectly safe. This hour, Radiolab goes to the zoo. What’s with our need to get close to “wildness”? We examine where we stand in this paradox–starting with the Romans, and ending in the wilds of Belize, staring into the eyes of a wild jaguar.