How do starfish move?
Starfish
in a bilateral fashion, with certain arms acting like the front of the animal
Most starfish have five arms that radiate from a central disc, but the number varies with the group. Some species have six or seven arms and others have 10–15 arms.[3] The Antarctic Labidiaster annulatus can have over fifty.[4] Having descended from bilateral organisms, starfish move in a bilateral fashion, with certain arms acting like the front of the animal.[3]