They eat their food.
if a starfish loses a limb,it will grow back,and the limb will form into a new starfish.
They eat calms, oysters, mussels, small fish, sea snails , and barnacles. The predators that eat that are manta rays, some sharks and other bony fishes like to pick them off the bottom of the sea and...
Its not. Its called a sea star. They arent called star fish because they arent fish.