Con chem chép là con gì

"Chem chép" is a type of seafood belonging to the two-piece shellfish family, similar to clams, mussels, and cockles . They have hard shells with various patterns and are about the size of a big toe . They are considered to have high nutritional value and a sweet taste, suitable for making many delicious and diverse dishes . They are often found in coastal areas, and they are most delicious in winter .