What is a seashell? Where do seashells come from? How are they made? Explorers Club Member Charles Rawlings loves to photograph “living seashells,” including mollusks such as octopuses, squid, nautiluses and colorful nudibranchs. Using his stunning photographs, Charles will show you where these ocean creatures can be found, what they look like close-up and what makes them so much more than a vacation souvenir.