What is a Mollusk? How are shells formed? Can the creatures that make the shells trade them in for new ones when they feel like it? None of these are silly questions. In fact, we love this kind of curiosity from guests of all ages - it's why we're here! To tide you over until you're able to get to the Museum to see our live mollusk tanks and attend some of our great programs - we'd like to introduce you to a few of the "live" shells (aka mollusks) most commonly found around Sanibel and Captiva. This is just a small sampling of the complex and fascinating world of mollusks!