Edible mollusks are a type of seafood that can be found in many different parts of the world. Oysters, abalones, and octopi are all examples of edible mollusks. Oysters are bivalve mollusks that have a hard shell and are typically found in saltwater environments. Abalones are also bivalve mollusks, but they have a single shell and are usually found in shallow waters. Octopi are cephalopods that have eight arms and are found in both saltwater and freshwater environments. All three of these mollusks are considered to be delicacies in many cultures and are enjoyed by people around the world.