›How saving wild oysters could save America's shrinking coastlines
science10:02How saving wild oysters could save America's shrinking coastlinesOyster reefs used to line America's coastlines. Today, they've nearly vanished because of overharvesting..., increasingly powerful storms, and oil spills. But conservationists are trying to bring back America's wild oysters, not just for eating, but for the benefits they bring to receding coastlines. We went to Louisiana to find out what it takes to farm oysters today and learn about the efforts to replenish these little bivalves.