Scallops dwell in every ocean on Earth, a rarity among bivalves. They've evolved the capability of "free-living," swiftly covering short distances and migrating across the seafloor. 

These edible bivalves offer culinary delights thanks to their firm white meat and the brightly colored roe. 

According to Seafood Watch, scallop farming could be sustainable when done with off-bottom culture methods. Although disease spread to wild species is a potential concern, the low chances of other environmental impacts make this farming method a responsible choice.