there is no difference between oysters and oysters. Oysters are oysters. Oyster generally refers to oyster, also known as oyster, which is the largest cultured shellfish in the world. Rich in nutrition, zinc content ranks first in human food. Oyster is not only a delicious food, but also its meat and shell can be used as medicine. Oyster shells are rich in calcium. Eating oysters raw is not recommended because they may contain parasites and other microorganisms. Habits of oysters Oysters generally live in intertidal or subtidal zones with a water depth of less than 1 meters, and their shells are usually attached to other objects for fixed life. Oysters have a relatively strong characteristic, which is called compression resistance. This is because the earth's environment has changed countless times in 2 million years, making them more and more resistant to temperature, salinity and some diseases. They can endure hot and dry weather, cold and freezing weather, and even live without water for a month.