Paddlefish

Missouri Department of Conservation

The American paddlefish is a pretty bizarre-looking creature, named after the long, flat appendage jutting out from its head, but the prehistoric species has made a reputation for itself around the world for another reason: caviar. In between the rivers and the five-star restaurants, the eggs pass through fish houses run by a unique group of American fishermen who, decades ago, threw out their nets to catch a piece of this lucrative market.