Scallops are in the phylum Mollusca, a group of animals that also includes snails, sea slugs, octopuses, squid, clams, mussels, and oysters. The so-called adductor muscles inside their colorful shells are edible and sold as seafood. When prepared correctly, they have a slightly sweet taste and a tender, buttery texture.
Scallops are an excellent source of several trace minerals, including selenium, zinc, copper, vitamin B12, and omega-3 fatty acids. Can be found in saltwater environments worldwide, ranging from the intertidal zone to the deep sea. Most prefer beds of seagrass amid shallow sandy bottoms, although some attach themselves to rocks or other substrates.