The Family Cardiidae includes a large group of bivalve mollusks that are commonly referred to as cockles. These marine organisms are found throughout the world and are valued for their delicious meat. They are considered among the most important food sources in many cultures. Members of the Family Cardiidae have round or heart-shaped shells and distinctive ridges or ribs. Other synonyms for this group include heart cockles, true cockles, and true heart cockles. While their size and coloration can vary depending on the species, all members of the Family Cardiidae are known for their sweet, succulent meat, making them a popular seafood choice for many people worldwide.