There are many edible shellfish who live in the sand. Many people enjoy eating clams and mussels. Clams and mussels are bivalve mollusks who live in the sand. People also like crabs. Crabs are crustacean shellfish who live in the sand.
Mussel is in fact a general name for many species of bivalve. These bivalves inhabit both fresh and saltwater, though not interchangeably. They do not need sunlight and their vitality can be assessed through observation; if they move, they're alive.
Many animals have adapted to live under the sand. Crabs and mussels live in the protection of the sand below the tidal line at the beach. While many desert lizards, snakes, insects, and small mammals will call the sand dune their home.
What kind? Their color allows them to blend into the substrate which it attaches to. Mussels on the eastern coast have acquired thinker shells ever since the Asian Shore Crab was introduced a few hundred years ago.
Yes. Their main sources of food are clams, oysters sand dollars and mussels, which are usually attached to rocks or otherwise unable to escape fast. They also eat snails and injured fish, when they can find them.
Plants need sand to maintain porosity around the roots so that oxygen can easily be made available for respiration. In other wordsplants aren't the ones that need the sand, the soil and the mulch need the sand for better aeration.
Freshwater mussels live in rivers, while saltwater mussels live in oceans. Even though it is mussels, it differs a lot. Freshwater mussel and saltwater mussels hunt different things, because they live in different places.