Oysters are a favorite of seafood lovers across the United States. Oysters, a kind of shellfish, are native to U.S. waters on both the Atlantic and Pacific coasts. Now, more than 20 eateries and other seafood businesses have joined together on a project to help the environment. Their goal is to collect old oyster shells and use them to grow new oysters. Project organizers say the recycled shells can also act as a filter. They remove dirty particles from the water. Tony Price is with the Shell Recycling Alliance, a program of the Oyster Recovery Partnership. The program collects discarded oyster shells from seafood restaurants. It then uses the shells as homes for baby oysters.