 Hey, I'm Luck of Nassar. And I'm Lulu Miller. This is Radiolab, and today... You see these wasps? Editor Alex Neeson. Ooh, I'm stepping in mud. Ooh, it is squishy. Goes on sort of an odyssey. Down to New Orleans, where she... Oh, it's so muddy. Sloshed and slogged. Right. Through swampy cemeteries. Some of these headstones, you can't even make them out because they're just so old and weathered. Sweaty basement archives. Yeah, nothing? Yeah.