““Representative Broussard had dispatched a field agent on a fact-finding mission. The man, a native of southern Africa, found the Louisiana swamps “wildly dismal and forbidding.” (The “silence strike[s] one with an almost unforgettable horror,” he wrote in his report, titled “Why and How to Place Hippopotamus in the Louisiana Lowlands.”) Still, the place was perfect for hippos. His conclusion: “The hippopotamus would find no difficulty living in Louisiana.””