insert_link Food & Drink March 31st is National Clams on the Half Shell Day! National Clams on the Half Shell Day is March 31st. The half shell is the simplest way to serve clams, and it is a delightful, high protein, low calorie and nutritious dish for lovers of raw seafood. Clams are "bivalves," which are aquatic mollusks that have a compressed body with an upper and lower shell, hinged together. Other bivalves include oysters, mussels and scallops, but clams and oysters are most […] todayMarch 31, 2022