What family does oyster belong?

Oysters belong to the family Ostreidae, a group of marine bivalve mollusks. They are characterized by their irregular shells, often with a wavy or ruffled appearance. Oysters are found in both shallow and deep waters, and they play an important role in marine ecosystems as filter feeders. They are also a popular seafood item, and are commonly consumed raw, cooked, or smoked.