What is a "shellfish"?

Shelfish refers to a diverse group of aquatic animals that possess a shell or exoskeleton, protecting their soft bodies. They include various types of mollusks, such as clams, mussels, oysters, and scallops, as well as crustaceans like crabs, lobsters, and shrimp. Shellfish are commonly found in both saltwater and freshwater environments, and they play a significant role in culinary traditions around the world. They are valued for their delicious meat and are often enjoyed in various seafood dishes. However, it is important to note that some individuals may have allergies or sensitivities to shellfish, so caution should be exercised when consuming them.