The king razor clam spitting out its nose is a self-protective behavior. Although razor clams are a type of seafood, the appropriate salt content for razor clams is 0.4% to 2.8%, so razor clams are intolerant of high salt and osmotic environments. The abundance of sodium ions in salt will change the environment in which razor clams live, and razor clams that come into contact with a large amount of salt will want to get out of their burrows and try to jump out.

Razor clam (chēng) razor clam is a marine shellfish. Mollusks. Between the two shells, the shape of the narrow and long, outside the egg yellow, inside the white, living in the sea water near the shore, can also be cultured, meat flavor. There are razor clams, bamboo razor clams and other species.